Light and shadow
Straight lines · Alberta Grade 2 · maddyhelps.com
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Use a torch and a small object on a table. Move the torch closer and further and draw what the shadow does. Light travels in straight lines, and this is how you can see that it does.
What happened to the shadow when the torch came closer?
Sort these: does light go through?
| Thing | All of it | Some of it | None of it |
|---|---|---|---|
| A window | |||
| A curtain | |||
| A door | |||
| Tracing paper | |||
| A hand |