PR-6171R Science A STEM Approach - Primary 2
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Lesson 4<br />
Energy and Forces<br />
NOW YOU SEE IT! NOW YOU HEAR IT!<br />
Prediction: What will happen to the hundreds<br />
and thousands on the bowl when I hum?<br />
Nothing will happen.<br />
The hundreds and thousands will move and vibrate.<br />
The hundreds and thousands will change colour.<br />
Materials:<br />
• ceramic bowl<br />
• cling film<br />
• hundreds and<br />
thousands<br />
Procedure:<br />
• Place cling film tightly over bowl.<br />
• Sprinkle hundreds and thousands on top.<br />
• Hum near the bowl.<br />
• Try humming at different distances, even<br />
touching the bowl with your mouth.<br />
Results: Draw or write what the hundreds and thousands looked like<br />
when you hummed.<br />
Viewing sample<br />
Conclusion:<br />
When you hum you create<br />
sound.<br />
which make a<br />
The<br />
are invisible but the hundreds and<br />
thousands let us see them.<br />
Finished? Scan this QR code to watch a video and compare<br />
it to your experiment.<br />
72 <strong>Science</strong>:<br />
A <strong>STEM</strong> AP<strong>PR</strong>OACH<br />
1st<br />
CLASS<br />
978-1-912760-15-2 Prim-Ed Publishing – www.prim-ed.com
Change language