Science 2nd grade | UNIT 3: Changing materials 3.3 Fantastic elastic
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What material is the rope made from?
The rope tied to the bungee jumper is made from a material that will stretch.
Materials that will stretch are called elastic materials.
Rubber is a natural elastic material. It is made from the sap of the rubber tree.
Activity 3.3 (Looking at elastic bands)
You will need: different sized elastic bands a pole - a pot or small bag marbles or small stones string - paperclips sticky tape – small bricks
Try to answer this question: which elastic band stretches the most?
Look at the pictures to see what to do.
What could go wrong in the pictures? How could you get hurt?
How will you tell others what you find out?
Sports players use elastic materials to train their muscles.
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