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Science Lesson Kit · Student Worksheet

The Aquarium Window: Independent Evidence

Fresh case: The same plastic toy fish rests submerged in a clear water-filled container. A learner observes it first from the side and then from above. The fish stays in the same place.

Grade 4

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Date:

  1. 1.

    A toy fish stays still underwater but looks shifted when viewed from a different angle. Why might its apparent position change?

    Original hand-painted Grade 4 refraction science illustration: worksheet fish views
  2. 2.

    A pond reflects a nearby tree AND shows a fish under its surface. Which observation demonstrates refraction?

    • The underwater fish seems shifted
    • The tree is mirrored on the surface
    • Both mean the fish physically moved
  3. 3.

    Draw a simple model of one light ray from the underwater toy through the surface to an eye above it. Include one change in direction at the boundary.

    Original hand-painted Grade 4 refraction science illustration: worksheet fish ray starter

    Draw here

  4. 4.

    A classmate says the aquarium glass and water physically bend the toy. Explain why that claim is unsupported.

  5. 5.

    Describe a fair comparison to test how adding water changes a picture of the same toy.