Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 996 · 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 not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) yeast (d) a sunny window
2. 2.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) the rainbow fades (d) it turns brighter
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a balloon (c) bright sunlight (d) a sheet of white paper
4. 4.🌈 In VIBGYOR, what number colour is red?
5. 5.🌈 How many colours do we name in a rainbow (VIBGYOR)?
6. 6.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
7. 7.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) True (b) False
8. 8.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) in front of you (c) straight above you (d) under the ground
9. 9.🌈 In VIBGYOR, what number colour is violet?
10. 10.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a battery cell (c) bright sunlight (d) a mirror
11. 11.⚖️ 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
12. 12.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
13. 13.🌈 In VIBGYOR, what number colour is yellow?
14. 14.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
15. 15.True or false: a mirror is needed for the water rainbow. (a) False (b) True
16. 16.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a battery cell (d) a clear glass of water
18. 18.⚖️ 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
19. 19.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
21. 21.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) look at it through glass (d) never look at the Sun
22. 22.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a magnet (d) a shadow of ice
23. 23.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a balloon (c) a battery cell (d) turmeric powder
26. 26.⚖️ 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 amount of water (b) brightness of rainbow (c) the same window
27. 27.⚖️ 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 white paper (b) the amount of water (c) brightness of rainbow (d) the same glass
28. 28.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) red (d) green
29. 29.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it does not fall (c) so it gets hot (d) so it turns blue
30. 30.True or false: a magnet is needed for the water rainbow. (a) True (b) False
31. 31.⚖️ 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) True (b) False
32. 32.🌈 In VIBGYOR, what number colour is green?
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 keep it the same (b) we measure it (c) we change it
34. 34.🧺 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 sunny window (d) turmeric powder
35. 35.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
36. 36.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) yeast (c) a clear glass of water (d) a sunny window
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) True (b) False
40. 40.⚖️ 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 glass

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