Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 698 · 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 needed for the water rainbow? (a) turmeric powder (b) a clear glass of water (c) a mirror (d) a balloon
2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
3. 3.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a sheet of white paper (c) a sunny window (d) a clear glass of water
5. 5.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
6. 6.🧺 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) bright sunlight (d) a battery cell
7. 7.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) the rainbow fades (c) it floats away (d) it turns all red
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
11. 11.⚖️ 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 same glass (b) the same window (c) the amount of water (d) brightness of rainbow
12. 12.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) turmeric powder (c) a magnet (d) a balloon
14. 14.⚖️ 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
15. 15.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
16. 16.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
17. 17.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it turns blue (c) so it does not fall (d) so it gets hot
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? True or false: the time of day is what we measure. (a) True (b) False
20. 20.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) bright sunlight (c) a clear glass of water (d) a sunny window
21. 21.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a sunny window (d) turmeric powder
22. 22.⚖️ 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 white paper (b) the amount of water (c) brightness of rainbow
23. 23.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
24. 24.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
25. 25.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a shadow of ice (c) a small rainbow (d) a magnet
26. 26.⚖️ 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 measure it (b) we change it (c) we keep it the same
27. 27.🌦️ 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
28. 28.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a clear glass of water (d) a mirror
29. 29.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a battery cell (c) a sunny window (d) bright sunlight
30. 30.⚖️ 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 time of day
31. 31.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a mirror (d) turmeric powder
32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a mirror (c) a sheet of white paper (d) bright sunlight
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 window”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.True or false: a magnet is needed for the water rainbow. (a) True (b) False
35. 35.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it in a mirror (c) never look at the Sun (d) look at it through glass
36. 36.🌈 In VIBGYOR, what number colour is indigo?
37. 37.⚖️ 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
38. 38.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) magnetism (c) reflection (d) refraction
39. 39.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
40. 40.True or false: a sunny window is needed for the water rainbow. (a) False (b) True

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