Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 229 · 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.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) True (b) False
2. 2.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
4. 4.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) False (b) True
5. 5.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) a battery cell (d) bright sunlight
6. 6.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it gets hot (c) so it turns blue (d) so it does not fall
7. 7.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
8. 8.🌈 In VIBGYOR, what number colour is red?
9. 9.📘 What do we call light bending as it passes from air into water? (a) reflection (b) evaporation (c) magnetism (d) refraction
10. 10.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) red (c) violet (d) blue
11. 11.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
12. 12.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
13. 13.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
14. 14.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
15. 15.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) False (b) True
16. 16.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) behind you (c) under the ground (d) in front of you
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a magnet (c) a sunny window (d) a sheet of white paper
18. 18.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
19. 19.⚖️ 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) brightness of rainbow (c) the amount of water (d) the same glass
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) yeast
21. 21.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) turmeric powder (c) a clear glass of water (d) a balloon
22. 22.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
23. 23.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the amount of water (c) the same glass (d) the same window
25. 25.🌈 In VIBGYOR, what number colour is yellow?
26. 26.⚖️ 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 keep it the same (b) we change it (c) we measure it
27. 27.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) snow falling (c) a small rainbow (d) a shadow of ice
28. 28.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a mirror (d) a clear glass of water
29. 29.🌈 How many colours do we name in a rainbow (VIBGYOR)?
30. 30.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is kept the same. (a) False (b) True
31. 31.⚖️ 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) True (b) False
32. 32.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) stare at the Sun (d) look at it in a mirror
33. 33.True or false: a balloon is needed for the water rainbow. (a) True (b) False
34. 34.🌈 In VIBGYOR, what number colour is blue?
35. 35.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
36. 36.⚖️ 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 same window (c) the amount of water
37. 37.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a sheet of white paper (c) a magnet (d) a battery cell
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the time of day (b) the amount of water (c) brightness of rainbow
39. 39.🌈 In VIBGYOR, what number colour is orange?
40. 40.🌈 In VIBGYOR, what number colour is violet?

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