Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 226 · 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 clear glass of water (b) a balloon (c) bright sunlight (d) a sheet of white paper
2. 2.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
3. 3.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a magnet (c) a small rainbow (d) a shadow of ice
4. 4.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) look at it through glass (d) stare at the Sun
5. 5.⚖️ 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
6. 6.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
7. 7.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so it does not fall (d) so the Sun moves
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a battery cell (c) a sunny window (d) a clear glass of water
11. 11.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
12. 12.True or false: yeast is not needed for the water rainbow. (a) False (b) True
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) True (b) False
14. 14.🌈 In VIBGYOR, what number colour is red?
15. 15.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) yeast (c) a clear glass of water (d) a balloon
16. 16.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
17. 17.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
18. 18.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a balloon (c) a sheet of white paper (d) a battery cell
19. 19.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
20. 20.🌈 In VIBGYOR, what number colour is yellow?
21. 21.⚖️ 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) True (b) False
22. 22.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
23. 23.🌈 How many colours do we name in a rainbow (VIBGYOR)?
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) a mirror (d) bright sunlight
25. 25.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
26. 26.⚖️ 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 amount of water (b) brightness of rainbow (c) the same white paper (d) the same window
27. 27.🌦️ 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
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
32. 32.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) violet (d) orange
33. 33.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
34. 34.True or false: a mirror is needed for the water rainbow. (a) False (b) True
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 keep it the same (b) we change it (c) we measure it
36. 36.True or false: a magnet is needed for the water rainbow. (a) True (b) False
37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) turmeric powder (c) a clear glass of water (d) bright sunlight
38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a battery cell (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 same glass is the one thing we change. (a) False (b) True
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) False (b) True

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