PR-6171IRE Science A STEM Approach - 1st Class
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Lesson 3<br />
Materials<br />
IT’S A STRETCH<br />
Hypothesis:<br />
When playdough is put in the oven, I<br />
think it will …<br />
Experiment Worksheet<br />
When chocolate is put in the oven, I<br />
think it will …<br />
Procedure:<br />
1. Make small balls from the playdough the size of a blueberry or grape.<br />
2. Use a toothpick to poke small holes in the centre of the playdough balls and<br />
the chocolate buttons. The holes need to be big enough to fit a piece of<br />
string through.<br />
3. Place the playdough and chocolate in bun cases and put them in the oven.<br />
Remove the chocolate after two minutes and leave the playdough in for<br />
5–10 minutes. Make sure the oven is on low heat.<br />
4. Observe!<br />
Chocolate Before being heated After being heated<br />
How did the<br />
chocolate change<br />
after being<br />
heated?<br />
Draw or write what<br />
it looked like.<br />
What happened<br />
to the hole?<br />
Playdough Before being heated After being heated<br />
How did the<br />
playdough<br />
change after<br />
being heated?<br />
Draw or write what<br />
it looked like.<br />
What happened<br />
to the hole?<br />
Viewing sample<br />
108 <strong>Science</strong>:<br />
A <strong>STEM</strong> AP<strong>PR</strong>OACH<br />
<strong>1st</strong><br />
CLASS<br />
978-1-912760-15-2 Prim-Ed Publishing – www.prim-ed.com
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