How Many Pencils? Worksheet

Name: Date:

1. Place a glass of water on a table and stand a pencil about 30 cm behind it.

2. Look through the glass towards the pencil.

How many pencils do you see? ____________

3. Close your left eye.

Do you see the right pencil or the left one?__________

4. Close your right eye.

Do you see the right pencil or the left one? __________

5. Why do you think the pencils disappear?



Write your own hypothesis.

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