Rainbow Science Experiment Worksheet

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

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