Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 906 · 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 time of day is the one thing we change. (a) True (b) False
2. 2.⚖️ 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 change it (b) we measure it (c) we keep it the same
3. 3.⚖️ 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 keep it the same (b) we measure it (c) we change it
4. 4.🛟 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
5. 5.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
6. 6.🌈 In VIBGYOR, what number colour is violet?
7. 7.🧺 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 sheet of white paper
8. 8.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a small rainbow (c) snow falling (d) a shadow of ice
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 glass”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
11. 11.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) turmeric powder (c) a sheet of white paper (d) a clear glass of water
12. 12.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it does not fall (c) so it gets hot (d) so it turns blue
13. 13.🌈 In VIBGYOR, what number colour is indigo?
14. 14.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
15. 15.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
16. 16.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a magnet (c) yeast (d) a clear glass of water
17. 17.🧺 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
18. 18.☀️ What is white sunlight really made of? (a) tiny drops of water (b) only yellow light (c) tiny bits of dust (d) many colours mixed
19. 19.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) violet (d) orange
20. 20.🌈 In VIBGYOR, what number colour is orange?
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) a clear glass of water (d) a sunny window
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a battery cell (d) a clear glass of water
23. 23.🌈 How many colours do we name in a rainbow (VIBGYOR)?
24. 24.📘 What do we call light bending as it passes from air into water? (a) refraction (b) magnetism (c) evaporation (d) reflection
25. 25.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
26. 26.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) behind you (d) in front of you
27. 27.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
28. 28.⚖️ 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) brightness of rainbow (c) the same window (d) the time of day
29. 29.⚖️ 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
30. 30.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
31. 31.⚖️ 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) the same white paper (c) the same window (d) the same glass
32. 32.🌈 In VIBGYOR, what number colour is green?
33. 33.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) a battery cell (d) a sheet of white paper
34. 34.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a magnet (d) a clear glass of water
35. 35.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a sunny window (d) yeast
36. 36.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sunny window (c) turmeric powder (d) a battery cell
37. 37.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) bright sunlight (d) a mirror
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 the one thing we change. (a) True (b) False
39. 39.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
40. 40.True or false: a magnet is not needed for the water rainbow. (a) True (b) False

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