Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 334 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a magnet (c) a mirror (d) a clear glass of water
2. 2.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
3. 3.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) a sheet of white paper (c) bright sunlight (d) a sunny window
5. 5.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
6. 6.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a small rainbow (c) a shadow of ice (d) snow falling
7. 7.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) yeast (d) a sunny window
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same window (b) the time of day (c) the amount of water (d) brightness of rainbow
9. 9.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
10. 10.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
11. 11.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
12. 12.🌈 In VIBGYOR, what number colour is blue?
13. 13.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
14. 14.🌈 How many colours do we name in a rainbow (VIBGYOR)?
15. 15.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a sunny window (c) a sheet of white paper (d) bright sunlight
16. 16.True or false: yeast is not needed for the water rainbow. (a) True (b) False
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) orange (c) red (d) yellow
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) False (b) True
20. 20.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a balloon (c) turmeric powder (d) a sunny window
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) turmeric powder
23. 23.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
24. 24.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
25. 25.🌈 In VIBGYOR, what number colour is green?
26. 26.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a mirror (d) bright sunlight
27. 27.🌈 In VIBGYOR, what number colour is yellow?
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the amount of water (c) the same window
29. 29.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) bright sunlight (d) a battery cell
30. 30.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) violet (c) green (d) blue
31. 31.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so it turns blue (c) so it gets hot (d) so the Sun moves
32. 32.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) look at it through glass (c) stare at the Sun (d) never look at the Sun
33. 33.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
37. 37.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) behind you (d) in front of you
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same window (b) the same glass (c) the amount of water (d) the same white paper
39. 39.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) True (b) False

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