{"alias":"blogEntry","byline":"Nicola Hilliard, Creative Content Producer","standfirst":"Are you ready for a thrilling scientific journey from the comfort of your own home? Well, we\u2019ve got 8 exciting experiments for you, with thanks to Rolls-Royce.","content":{"layouts":[{"type":"singleColumn","areas":[{"items":[{"gridType":"gridImageBlock","gtmId":"","gtmClass":"","image":"/media/1hul0dnx/scout-holding-slime.jpg","width":6000,"height":4000,"altText":"","caption":"","link":null},{"gridType":"RichTextBlock","content":"\u003Cp\u003ERolls-Royce is helping Scouts to ignite their curiosity in Science, supporting our Cubs and Scouts to get their Scientist Activity Badges.\u003C/p\u003E\n\u003Cp\u003ESo, prepare to put on your lab coats and spark your curiosity, as we share our top science experiments to do easily at home.\u00A0\u003C/p\u003E\n\u003Cp\u003EFrom jaw-dropping chemical reactions to mind-boggling physics, let\u0027s dive headfirst into a world of wonder and scientific adventure.\u003C/p\u003E","gtmId":"","gtmClass":""},{"gridType":"gridImageBlock","gtmId":"","gtmClass":"","image":"/media/bbhfinhc/scouts-doing-science-in-tent.jpg","width":6000,"height":4000,"altText":"","caption":"","link":null},{"gridType":"accordion","gtmId":"","gtmClass":"","showExpand":false,"items":[{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u2019ll need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003EA lemon\u003C/li\u003E\n\u003Cli\u003EBicarbonate of soda\u003C/li\u003E\n\u003Cli\u003EWashing up liquid\u003C/li\u003E\n\u003Cli\u003EKnife\u003C/li\u003E\n\u003Cli\u003EChopping board\u003C/li\u003E\n\u003Cli\u003ESpoon\u003C/li\u003E\n\u003Cli\u003EBowl\u003C/li\u003E\n\u003Cli\u003EFood colouring (optional)\u00A0\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EAsk an adult to help you to cut off the ends of the lemon, then sit it flat and upright in the bowl.\u003C/li\u003E\n\u003Cli\u003EUse the spoon to mash up the inside of the lemon.\u003C/li\u003E\n\u003Cli\u003EKeeping the lemon in the bowl, add a few drops of food colouring and a squeeze of washing up liquid into the lemon.\u003C/li\u003E\n\u003Cli\u003EAdd a spoonful of bicarbonate of soda to the lemon.\u003C/li\u003E\n\u003Cli\u003EUse a spoon to mix it a little, then stand back and watch what happens - the lemon should start to fizz and froth.\u00A0\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EBicarbonate of soda is an alkali. Lemon juice is very acidic because it contains citric acid, which also gives it that sour taste.\u003C/p\u003E\n\u003Cp\u003EWhen you mix an acid (such as citric acid) with an alkali, you get a chemical reaction.\u003C/p\u003E\n\u003Cp\u003EWhen the bicarbonate of soda\u2019s added to the lemon, it combines with the citric acid and releases bubbles of carbon dioxide gas.\u003C/p\u003E\n\u003Cp\u003EThe bubbles mix with the washing up liquid, creating a fizzy, frothy lemon volcano!\u003C/p\u003E","label":"Build a lemon volcano"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003ELemonade\u003C/li\u003E\n\u003Cli\u003EWater\u003C/li\u003E\n\u003Cli\u003ETwo glasses\u003C/li\u003E\n\u003Cli\u003EHandful of raisins\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EFill one glass with lemonade and another with plain, non-fizzy tap water.\u00A0\u003C/li\u003E\n\u003Cli\u003ENext, place raisins in each glass.\u00A0\u003C/li\u003E\n\u003Cli\u003EWatch what happens and see how they \u2018dance\u2019 in the glass with lemonade.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EThe gas bubbles from the soda (made of carbon dioxide) carry the raisins upwards.\u003C/p\u003E\n\u003Cp\u003EOnce the carbon dioxide bubbles reach the surface of the lemonade, they pop and the gas is released into the air.\u00A0When the bubbles pop, the raisin sinks again. The raisin loses buoyancy and falls back down to the bottom of the glass.\u003C/p\u003E\n\u003Cp\u003EThe water has no bubbles, so the raisins sink and stay at the bottom. The raisins act differently in the two different liquids.\u00A0\u003C/p\u003E","label":"Dancing raisins"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003EAn inflated balloon\u003C/li\u003E\n\u003Cli\u003EAn aluminium can\u003C/li\u003E\n\u003Cli\u003EA jumper\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EExperiment 1:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003ERub a balloon on your jumper. Your jumper will become positively charged and the balloon will become negatively charged.\u003C/li\u003E\n\u003Cli\u003ECarefully try to stick the balloon to the jumper, so it hangs freely from it. You should find the balloon is attached the jumper.\u003C/li\u003E\n\u003Cli\u003EIf you want to take this further, see if you can get the balloon to stick to a wall.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EExperiment 2:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EPlace an empty tin or can on its side on a table, so it can roll freely.\u003C/li\u003E\n\u003Cli\u003ERub a balloon on your hair or jumper, to charge it.\u003C/li\u003E\n\u003Cli\u003EBring the balloon close to the can. It should attract the can because neutral objects are sometimes attracted by electrostatic forces too.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EExperiment 3:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EPlace an empty tin or can on its side on a table, so it can roll freely.\u003C/li\u003E\n\u003Cli\u003ERub two balloons on your hair or jumper, to charge them.\u003C/li\u003E\n\u003Cli\u003EBring the two balloons together. They should repel each other.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EExperiment 4:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EOpen a tap very slightly so there is only a thin, gentle stream of water coming from it.\u003C/li\u003E\n\u003Cli\u003ECharge a balloon, by rubbing it on your hair or clothing.\u003C/li\u003E\n\u003Cli\u003EMove the balloon close to the stream of water.\u00A0\u003C/li\u003E\n\u003Cli\u003EThe water should be repelled from the charged balloon so the stream of water is deflected.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EExperiment 5:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003ERub a balloon on your hair. Your hair will become positively charged and the balloon will become negatively charged. Oppositely charged insulators can attract.\u003C/li\u003E\n\u003Cli\u003ENext, bring the balloon close to your hair and then move it away. You should find your hair and the balloon are attracted.\u003C/li\u003E\n\u003Cli\u003EWatch your hair stick to it!\u003C/li\u003E\n\u003Cli\u003EIf you want to take this further, see if you can get the balloon to stick to a wall.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EThere are two types of electrical charge positive (\u002B) and negative (-).\u003C/p\u003E\n\u003Cp\u003EMost objects contain equal amounts of positive and negative charges, so they are uncharged or neutral.\u00A0\u003C/p\u003E\n\u003Cp\u003ENegative charges, known as electrons, can be transferred by friction between insulators. Insulators don\u2019t conduct electricity.\u003C/p\u003E\n\u003Cp\u003EObjects can become positively charged or negatively charged. When two different insulators are rubbed together, electrons move from one insulator to the other. The object which gains electrons is now negatively charged. The object which loses electrons is now positively charged.\u003C/p\u003E\n\u003Cp\u003EStatic electricity is a build-up of electrical charge on an object, usually because of friction between insulators.\u003C/p\u003E\n\u003Cp\u003EA jumper and a balloon are both neutral (uncharged) insulators. They contain equal numbers of positive and negative charges. The balloon is rubbed against the jumper. The friction causes electrons to be transferred. Both insulators are now charged. The jumper is positively charged because it has lost electrons. The balloon is negatively charged because it has gained electrons. Because these objects have opposite charges, there is an attractive force and the balloon and the jumper are attracted to each other.\u00A0\u003C/p\u003E\n\u003Cp\u003EObjects with the same type of charge will repel each other. If two insulators have like charges (the same type of charge), then there is a repulsive force between them. For example, if two balloons are both negatively charged from being rubbed on jumpers, so they repel each other. \u00A0\u003C/p\u003E\n\u003Cp\u003ENeutral objects are sometimes attracted by electrostatic forces too. This happens because of a process called polarisation of charge. Since electrons (small, light, negative charges) are mobile, they can move quite easily. When a charged object, such as a balloon, is moved close to a neutral object, for example a wall, the electrons are repelled and move further into the object. This leaves an area of net positive charge on the surface, even though the object is electrically neutral overall. However, positive ions are much more difficult to move.\u003C/p\u003E\n\u003Cp\u003EFor example, a balloon is charged but the wall is neutral, so they do not attract. When the balloon is moved close to the wall, some of the electrons are repelled leaving a region of net positive charge on the wall. The charged balloon is attracted to the neutral wall.\u003C/p\u003E","label":"Test out static electricity"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003EA large bowl\u00A0\u003C/li\u003E\n\u003Cli\u003EWashing up liquid\u003C/li\u003E\n\u003Cli\u003EAccess to water\u003C/li\u003E\n\u003Cli\u003EA funnel\u003C/li\u003E\n\u003Cli\u003EA dishcloth\u003C/li\u003E\n\u003Cli\u003EAn elastic band\u003C/li\u003E\n\u003Cli\u003EFood colouring\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003ETake the funnel and give it a good wash.\u003C/li\u003E\n\u003Cli\u003EPlace the dishcloth over the wide end of the funnel, so it fully covers it, then secure it onto the funnel\u2019s pipe with an elastic band.\u003C/li\u003E\n\u003Cli\u003EPut some water into the bowl, then add a squirt of washing up liquid. Stir the washing liquid and water together, until it gets a bit bubbly. You could also use bubble mixture and pour a bit of this directly into an empty bowl to use instead.\u003C/li\u003E\n\u003Cli\u003EDip the dishcloth covered part of the funnel into the liquid and give it a good soak.\u003C/li\u003E\n\u003Cli\u003ELift the bubble maker out and blow through the other end of the funnel.\u003C/li\u003E\n\u003Cli\u003EOnce you know how to make bubble snakes, you can add some colour by dropping different splashes of colour onto the dishcloth. The bubbles will come out like rainbows!\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EA soap bubble is simply a very thin sheet of soapy water, called a soap film, surrounding a volume of air. A force called surface tension pulls the soap film tight, so that it always has the minimum surface area possible. That\u2019s why a free-floating bubble always forms a sphere.\u00A0\u003C/p\u003E\n\u003Cp\u003ESince a bubble tends to reduce its surface area, bubbles will join together to share one common wall. Bubbles connect in hexagon pattern, which is also seen in honeycomb. It means bubbles always connect at 120 degrees.\u00A0\u003C/p\u003E\n\u003Cp\u003EWhen you blow air through a bubble snake maker, hundreds of tiny bubbles are created. The bubbles stick to each other, in the honeycomb pattern, creating a big, long snake!\u003C/p\u003E","label":"Make a bubble snake"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003EPaintbrush\u00A0\u003C/li\u003E\n\u003Cli\u003EA warm radiator\u003C/li\u003E\n\u003Cli\u003EPlain white paper\u003C/li\u003E\n\u003Cli\u003EBowl or cup\u003C/li\u003E\n\u003Cli\u003ELemon juice\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EFirst, squeeze the lemon juice into a bowl or cup and mix in a few drops of water.\u003C/li\u003E\n\u003Cli\u003ENext, dip the paintbrush into the lemon juice and water mixture.\u003C/li\u003E\n\u003Cli\u003EUse the paintbrush to write a secret message or draw a secret picture onto the plain white paper.\u003C/li\u003E\n\u003Cli\u003EWait a few moments for the paper to dry, as this allows time for the juice to become invisible.\u003C/li\u003E\n\u003Cli\u003EFinally, carefully place the paper on a warm radiator to reveal your secret messages.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003ELemon juice contains carbon compounds that are colourless at room temperature.\u003C/p\u003E\n\u003Cp\u003EThe heat source (in this case the radiator) breaks down the compounds and releases the carbon.\u00A0\u003C/p\u003E\n\u003Cp\u003EThe carbon oxidises when it comes into contact with the air.\u003C/p\u003E\n\u003Cp\u003EIt then turns brown, making your invisible message visible with the radiator\u2019s heat.\u003C/p\u003E","label":"Create your own invisible ink"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003E6 glasses or jars\u003C/li\u003E\n\u003Cli\u003EKitchen roll\u003C/li\u003E\n\u003Cli\u003EFood colouring in red, yellow, and blue\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EFirst, remember that food colouring can stain, so it\u2019s best to wear old clothes. You may also want to do this outside or somewhere you can protect the surfaces.\u003C/li\u003E\n\u003Cli\u003EFold six sheets of kitchen roll lengthwise.\u00A0\u003C/li\u003E\n\u003Cli\u003EPlace one kitchen roll sheet between two glasses, so it connects them. Repeat this for the remaining sheets and jars. The sheets should go from the bottom of one jar to the next without sticking up too high in the air. You may need to cut a few centimetres off each sheet, so they fit into the glasses.\u003C/li\u003E\n\u003Cli\u003EWhen you\u2019ve got them to the right size, remove the paper towels and place them to one side.\u003C/li\u003E\n\u003Cli\u003ENext, fill the first glass with a generous amount of red food colouring. Fill the third glass with yellow food colouring and the fifth glass with blue food colouring. Leave the other glasses empty.\u003C/li\u003E\n\u003Cli\u003EThen, add water to the glasses with food colouring them, until the coloured water almost reaches the top.\u003C/li\u003E\n\u003Cli\u003EMix each glass of food colouring well, using a separate spoon for each colour.\u003C/li\u003E\n\u003Cli\u003ENow add the paper towels back to the glasses. Starting with red, add one end of the paper towel and put the other end in the empty glass next to it, and so on.\u003C/li\u003E\n\u003Cli\u003EAfter several minutes, the coloured water will travel almost the whole length of each paper towel. You can watch the water do its magic for about 20 minutes.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EThe coloured water travels up the paper towel by a process called capillary action.\u003C/p\u003E\n\u003Cp\u003ECapillary action is the ability of a liquid to flow upward, against gravity, in narrow spaces. This is the same thing that helps water climb from a plant\u2019s roots to the leaves in the tree tops.\u00A0\u003C/p\u003E\n\u003Cp\u003EKitchen roll (and all paper products) are made from fibres found in plants called cellulose. In this demonstration, the water flowed upwards through the tiny gaps between the cellulose fibres.\u003C/p\u003E\n\u003Cp\u003EThe gaps in the towel acted like capillary tubes, pulling the water upwards. The water can defy gravity as it travels upward due to the water molecules clinging to the cellulose fibres in the paper towel. This is called adhesion.\u00A0\u003C/p\u003E\n\u003Cp\u003EThe water molecules are also attracted to each other and stick close together, a process called \u003Cstrong\u003Ecohesion.\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003ESo, as the water slowly moves up the tiny gaps in the paper towel fibres, the cohesive forces help to draw more water upwards.\u003C/p\u003E","label":"Make water walk between cups"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003ESix glass jars or bottles\u003C/li\u003E\n\u003Cli\u003EA jug\u003C/li\u003E\n\u003Cli\u003EWater\u003C/li\u003E\n\u003Cli\u003EA metal spoon\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EArrange six glass jars or bottles, making sure they\u2019re all the same size, but with no lids.\u003C/li\u003E\n\u003Cli\u003EPlace the six glass jars or bottles in a line.\u00A0\u003C/li\u003E\n\u003Cli\u003EWhat do you think will each jar sound like when you tap it with a spoon? Like any scientist, make a prediction, then tap each jar and write down what it sounds like.\u003C/li\u003E\n\u003Cli\u003ENext, put water in each of the jars. Pour 60 millilitres (ml) of water into the first jar. Add 120ml of water to the second jar. Add 180ml of water to the third jar. Add 240ml of water to the fourth jar. Add 300ml of water to the fifth jar. Finally, put 360ml to the sixth jar.\u00A0\u003C/li\u003E\n\u003Cli\u003EIf you want to, add a couple of drops of food colouring to each jar.\u003C/li\u003E\n\u003Cli\u003ENow, make another prediction. What will each jar sound like? Will they sound the same or different than when the container was empty? Will they sound the same or different from one another?\u003C/li\u003E\n\u003Cli\u003ETap each jar with a metal spoon.\u00A0\u003C/li\u003E\n\u003Cli\u003EWere you observations correct? Write down your observations about each jar\u2019s pitch (how high or low a sound is).\u003C/li\u003E\n\u003Cli\u003EIf you play around with the different levels of water in each jar, how does it change the pitches?\u00A0Using the different pitches, can you make a tune or song for someone else to guess?\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u00A0\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003ESound waves are created by vibrations, which are back-and-forth movements that repeat again and again.\u00A0\u003C/p\u003E\n\u003Cp\u003EThe pitch depends on the frequency of the waves, so how many are created each second. A high pitch is created by high-frequency sound waves and can sound squeaky. A low pitch is created by low-frequency sound waves, and sounds deep and booming.\u003C/p\u003E\n\u003Cp\u003EWhen you tapped the jar, it vibrated. The vibrations travelled from the jar to the water to the air and eventually to your ears. The jars with more water had a low pitch. The sound waves vibrated more slowly, because they had more water to travel through.\u00A0\u003C/p\u003E\n\u003Cp\u003EThe jars with less water had higher pitches. The sound waves vibrated faster because they had less water to travel through.\u00A0\u003C/p\u003E\n\u003Cp\u003EA jar with no water in it makes the highest pitch, because it has the least substance to travel through.\u003C/p\u003E","label":"Make a glass jar xylophone"},{"gridType":"accordionItem","gtmId":"","gtmClass":"","body":"\u003Cp\u003E\u003Cstrong\u003EYou\u003C/strong\u003E\u2019\u003Cstrong\u003Ell need:\u003C/strong\u003E\u003C/p\u003E\n\u003Cul\u003E\n\u003Cli\u003E2 paper cups\u003C/li\u003E\n\u003Cli\u003EString\u003C/li\u003E\n\u003Cli\u003E2 paperclips\u003C/li\u003E\n\u003Cli\u003EPushpins\u003C/li\u003E\n\u003Cli\u003EScissors\u003C/li\u003E\n\u003Cli\u003ESticky tack\u003C/li\u003E\n\u003C/ul\u003E\n\u003Cp\u003E\u003Cstrong\u003EWhat to do:\u003C/strong\u003E\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EWith adult help or supervision, use a push pin to poke a hole in the bottom of one of the cups. You should put some sticky tack on the other side for the pin to be pushed into.\u003C/li\u003E\n\u003Cli\u003ECut a length of string and thread it through the hole in the cup. Pull the end of the string through and tie a paperclip on the end of the string threaded through the cup, so the paperclip sits on the inside of the cup. This\u2019ll stop the string from coming out.\u003C/li\u003E\n\u003Cli\u003ERepeat steps 1 and 2 with the other cup\u003C/li\u003E\n\u003Cli\u003EFind a friend, walk apart until the string is tight.\u003C/li\u003E\n\u003Cli\u003EWhen you\u2019re ready one person should quietly talk into their cup, while the other person should put their ear to and listen on their cup.\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003ETake it further\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EYou can try different techniques to see what happens in this experiment. See if you can make a prediction of what will happen before giving it a go.\u00A0\u003C/p\u003E\n\u003Cp\u003EWhat happens if you\u2026\u00A0\u003C/p\u003E\n\u003Col\u003E\n\u003Cli\u003EHold the string when you talk?\u003C/li\u003E\n\u003Cli\u003EChange the length of the string/line?\u003C/li\u003E\n\u003Cli\u003ELet the string become loose when you talk?\u003C/li\u003E\n\u003Cli\u003EUse a bigger or smaller sized paper cup?\u003C/li\u003E\n\u003Cli\u003EUse a plastic cup instead of a paper cup?\u003C/li\u003E\n\u003Cli\u003ETry to make a 3-way call?\u003C/li\u003E\n\u003C/ol\u003E\n\u003Cp\u003E\u003Cstrong\u003EHow it works:\u003C/strong\u003E\u003C/p\u003E\n\u003Cp\u003EA string telephone works very much like a landline phone.\u003C/p\u003E\n\u003Cp\u003EWhen you talk into the cup your voice sends sound waves inside the cup, vibrating the bottom of the cup.\u00A0\u003C/p\u003E\n\u003Cp\u003EThe vibrations are transferred to the string, across the string and into the bottom of the other cup. The sound waves become vibrations inside the second cup, transferring the sound of your voice.\u003C/p\u003E","label":"Make a paper cup telephone"}]},{"gridType":"gridImageBlock","gtmId":"","gtmClass":"","image":"/media/2wyja2jl/scout-using-a-pioneered-catapult.jpg","width":6000,"height":4000,"altText":"","caption":"","link":null},{"type":"Promo","cta":"Find out more about safety in Scouts","body":"\u003Cp\u003EWhen running these activities for Scouts, as well as at home, all activities must be safely managed. You\u2019ll need to:\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EHave appropriate adult supervision:\u003C/strong\u003E Always have suitable\u0026nbsp;\u003Ca href=\u0022https://www.scouts.org.uk/volunteers/staying-safe-and-safeguarding/safety/planning-and-assessing-risk/guidance-for-supervision-of-activities/\u0022\u003Esupervision\u003C/a\u003E for young people. In Scouts, always follow the Yellow card and make sure you\u2019ll have enough adult helpers.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EChoose age appropriate experiments:\u0026nbsp;\u003C/strong\u003EOnly do science activities that are advised and age appropriate for your section. For example, you may want to avoid anything with small objects or choking hazards for 4-6 year olds (Squirrels).\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EHave a practice: \u003C/strong\u003EYou should test activities first to make sure you\u2019re confident in running them safely.\u0026nbsp;\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EWear protective clothing:\u003C/strong\u003E You should use protective clothing where necessary, such as gloves, goggles and/or aprons. You should also protect surfaces, where appropriate, such as by using newspaper or a tablecloth.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EComplete a risk assessment: \u003C/strong\u003EHave a thorough \u003Ca href=\u0022https://www.scouts.org.uk/volunteers/staying-safe-and-safeguarding/risk-assessments/\u0022\u003Erisk assessment\u003C/a\u003E\u0026nbsp;and take appropriate steps to reduce risk. Use the \u003Ca href=\u0022https://www.scouts.org.uk/volunteers/staying-safe-and-safeguarding/safe-scouting-cards/staying-safe-safety-checklist/staying-safe-leaders/\u0022\u003Esafety checklist\u003C/a\u003E to help you plan and risk assess your activity. Always get approval for the activity. Always have an\u0026nbsp;\u003Ca href=\u0022https://www.scouts.org.uk/volunteers/running-your-section/intouch/\u0022\u003EInTouch\u003C/a\u003E process in place.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ECheck everyone knows how to take part, including having an emergency stop:\u003C/strong\u003E Make sure all young people and adults involved in the activity know how to take part safely, such as running a demonstration and explaining what to do clearly. You should have a clear way to communicate to emergency stop when needed.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ECheck dietary requirements, medical conditions and allergies: \u003C/strong\u003EYou may need to adapt the activities to make sure everyone can take part and handle the items used. Check for dietary requirements, medical conditions or allergies that could be affected by what\u2019s being used.\u0026nbsp;\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EFollow manufacturers guidelines and relevant safety guidance, including for disposal:\u003C/strong\u003E Make sure you follow all relevant safety guidance or manufacturers guidelines, where available. Make sure you dispose of it appropriately too, in line with safety guidance. Some tasks may involve the use of unusual substances, potentially harmful ingredients or chemicals - again, make sure you follow all relevant safety guidance, including for disposal.\u0026nbsp;\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003ESupervise the use of sharp objects: \u003C/strong\u003EDemonstrate how to use and supervise the use of sharp objects, such as scissors. Supervise them appropriately throughout. Store all sharp objects securely, out of the reach of young people.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EBe cautious when using hot or heat-producing objects:\u0026nbsp;\u003C/strong\u003EHot items, such as irons, kettles, cookers and microwave ovens, produce a lot of heat. Be cautious when using this type of equipment and handling objects that have been heated, such as by using heatproof gloves. Young people should only use this equipment and handle heated objects under adult supervision. Always use stable and heatproof surfaces when involving heated items in an activity and have a fire safety plan in place, such as smoke alarms, fire drills and a safe way to extinguish fire. Never leave hot items unattended or unsupervised.\u003C/p\u003E\n\u003Cp\u003E\u003Cstrong\u003EHave a first aid kit: \u003C/strong\u003EMake sure there\u2019s a first aid kit nearby, including eyewash and items to treat burns or scalds. Find out more about \u003Ca href=\u0022/volunteers/staying-safe-and-safeguarding/incidents-and-illness/first-aid-kits-and-accident-books/first-aid-kits/\u0022 title=\u0022First Aid Kits\u0022\u003Efirst aid kits\u003C/a\u003E and \u003Ca href=\u0022#\u0022 title=\u002210: First Aid\u0022\u003Efirst aid training\u003C/a\u003E.\u003C/p\u003E","link":{"name":"Staying safe and safeguarding","id":null,"url":"/volunteers/staying-safe-and-safeguarding/","newWindow":false,"target":null},"colour":"#ffe627","title":"Staying safe","image":null,"imageFocus":"","imageId":0,"imageKey":"00000000-0000-0000-0000-000000000000","imageCrop":"","gridType":"card","gtmId":"","gtmClass":""}]}],"config":null}]},"searchDescription":null,"pageType":null,"location":null,"versionDate":"03 November 2023","reviewDate":null,"furtherReading":[{"caption":"","title":"Find out more about Rolls-Royce","url":"/supporters/rolls-royce/","newWindow":true},{"caption":"","title":"Cubs Science Activity Badges","url":"/cubs/activity-badges/scientist/","newWindow":true},{"caption":"","title":"Scouts Scientist Activity Badge","url":"/scouts/activity-badges/scientist/","newWindow":true}],"relatedLinks":[{"caption":"","title":"Discover more Scouts science activities","url":"https://www.scouts.org.uk/activities/?name=science","newWindow":true}],"id":77616,"nodeName":"Top 8 science experiments to do at home with Rolls-Royce","title":"Top 8 science experiments to do at home with Rolls-Royce","type":"blogEntry","image":{"url":"/media/2wyja2jl/scout-using-a-pioneered-catapult.jpg?width=800\u0026height=450\u0026v=1dab8c981308970","caption":"Scout Using A Pioneered Catapult","type":"jpg","size":9639441,"width":6000,"height":4000,"altText":""},"assets":null,"headerOptions":{"headerTitle":"Top 8 science experiments to do at home with Rolls-Royce","headerSubTitle":null,"headerCta":null,"headerCtaText":null,"headerCtaLink":null,"headerBackgroundColour":null,"showSEOImage":false,"headerBackgroundImage":null,"quickLinks":null},"subHeader":"Are you ready to embark on a thrilling scientific journey from the comfort of your own home? We\u2019ve got something exciting in store for you!","browserTitle":null,"silktide":"eyJjbXMiOiJVbWJyYWNvIiwiZWRpdG9yVXJsIjoiaHR0cHM6Ly9wcm9kLWNtcy5zY291dHMub3JnLnVrLy91bWJyYWNvIy9jb250ZW50L2NvbnRlbnQvZWRpdC83NzYxNiJ9","canonicalUrl":"https://www.scouts.org.uk/news/2023/november/top-8-science-experiments-to-do-at-home-with-rolls-royce/"}