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Heat Conduction |
Can heat transfer from one item to another? This fun science "trick" is interesting and entertaining and uses materials you may already have around your home. |
Suggested Materials: |
* 3 x coins of different sizes and / or shapes |
Suggested Instructions: |
Step 1: At home, take 3 different coins and place them into your container. Ask an adult to choose one of the coins and show the "audience" which coin they've selected. (Important: before they make their selection, you must turn your back so you don't see the coin they choose). |
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Step 2: Ask the adult to firmly squeeze the coin in their hand for about 1 minute while your back is still turned. |
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Step 3: After a minute has passed ask the adult to return the coin to the container while you are still not watching. |
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Step 4: Once the coin has been returned to the container, quickly turn around and feel all 3 coins. The coin which feels slightly warm is the coin the adult was holding. (Important: you must feel the coins quickly otherwise the coin will lose its heat). |
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Step 5: Hold the correct coin up to your "audience" and watch their jaws drop! |
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Step 6: Practice this science trick a few times at home before trying it at school. |
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Step 7: At school, repeat Step 1 to Step 5. Ask your teacher to select and hold the coin because an adult's hand is larger than a child's hand and it will make the coin warmer and easier to detect. |
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