Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 904 · 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 amount of water is what we measure. (a) False (b) True
2. 2.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a clear glass of water (c) a magnet (d) a balloon
4. 4.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a magnet (c) turmeric powder (d) bright sunlight
5. 5.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
6. 6.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) prisms (d) clouds
7. 7.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
8. 8.⚖️ 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
9. 9.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) a shadow of ice (c) a magnet (d) snow falling
10. 10.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so it gets hot (c) so the Sun moves (d) so it turns blue
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.⚖️ 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
13. 13.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
14. 14.⚖️ 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 measure it (b) we keep it the same (c) we change it
15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
16. 16.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
17. 17.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
18. 18.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
19. 19.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
20. 20.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
21. 21.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) in front of you (d) behind you
22. 22.True or false: a mirror is needed for the water rainbow. (a) False (b) True
23. 23.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sunny window (c) a battery cell (d) a balloon
24. 24.⚖️ 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) False (b) True
25. 25.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a sunny window (c) a sheet of white paper (d) bright sunlight
26. 26.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) violet (d) orange
27. 27.⚖️ 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) the same glass (c) brightness of rainbow
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) the same window (b) brightness of rainbow (c) the amount of water
29. 29.⚖️ 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 time of day (b) the same white paper (c) the amount of water (d) brightness of rainbow
30. 30.🌈 How many colours do we name in a rainbow (VIBGYOR)?
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 kept the same. (a) True (b) False
32. 32.⚖️ 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 measure it (c) we change it
33. 33.🌈 In VIBGYOR, what number colour is indigo?
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sheet of white paper
35. 35.🌈 In VIBGYOR, what number colour is violet?
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) bright sunlight (c) a sunny window (d) a clear glass of water
37. 37.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) reflection (c) refraction (d) evaporation
38. 38.⚖️ 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) False (b) True
39. 39.🌈 In VIBGYOR, what number colour is orange?
40. 40.⚖️ 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 change it (b) we measure it (c) we keep it the same

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