Light travels in a straight line from a source like the sun or a lamp. When light hits an object, it can be blocked. The area where the light is blocked creates a shadow! The size and shape of the shadow depend on the size and shape of the object, the position of the light source, and the surface the shadow falls on. Have fun practicing with these problems!
Match the word with its correct definition:
| Word | Definition |
|---|---|
| 1. Opaque | A. An area where light is blocked. |
| 2. Shadow | B. Allowing some light to pass through, but not clearly. |
| 3. Light Source | C. Not allowing any light to pass through. |
| 4. Translucent | D. The place where light comes from. |
| 5. Transparent | E. Allowing all light to pass through, so you can see clearly. |
Complete the sentences using the words: smaller, larger, straight, light, shadow.
1. _______ travels in a _______ line.
2. When an object is closer to the light source, the _______ becomes _______.
3. The absence of _______ forms a _______.
Imagine you're outside on a sunny day. Explain why your shadow changes shape and size throughout the day. What is happening to the sun's position that causes this?
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