Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 470 · 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 sunny window (c) bright sunlight (d) a magnet
2. 2.🌈 In VIBGYOR, what number colour is orange?
3. 3.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) refraction (c) magnetism (d) reflection
4. 4.True or false: a mirror is needed for the water rainbow. (a) True (b) False
5. 5.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) prisms (d) clouds
6. 6.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) a mirror
7. 7.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
8. 8.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) turmeric powder (c) a sheet of white paper (d) a battery cell
9. 9.⚖️ 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 measure it (c) we keep it the same
10. 10.🌈 In VIBGYOR, what number colour is blue?
11. 11.🔮 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
12. 12.⚖️ 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
13. 13.🌈 How many colours do we name in a rainbow (VIBGYOR)?
14. 14.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
15. 15.⚖️ 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) False (b) True
16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the time of day (c) the amount of water (d) the same glass
17. 17.🧺 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 balloon (d) a clear glass of water
18. 18.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
19. 19.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) yeast (d) a sunny window
20. 20.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a sheet of white paper (d) a magnet
22. 22.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
23. 23.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it gets hot (c) so it turns blue (d) so it does not fall
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
25. 25.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a battery cell (d) a clear glass of water
26. 26.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
27. 27.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
28. 28.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) behind you (d) under the ground
29. 29.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
30. 30.🌈 In VIBGYOR, what number colour is green?
31. 31.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) blue (c) violet (d) red
32. 32.🌈 In VIBGYOR, what number colour is red?
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) a battery cell
35. 35.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
36. 36.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
37. 37.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) a balloon
38. 38.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) violet (d) orange
39. 39.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a mirror (d) bright sunlight
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 kept the same. (a) True (b) False

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