Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 982 · 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.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
2. 2.🧺 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
3. 3.🌈 How many colours do we name in a rainbow (VIBGYOR)?
4. 4.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
5. 5.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
6. 6.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sheet of white paper (c) a sunny window (d) bright sunlight
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
9. 9.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) yeast (c) a sunny window (d) a clear glass of water
11. 11.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so the Sun moves (c) so it does not fall (d) so it gets hot
12. 12.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a magnet (c) a sheet of white paper (d) bright sunlight
13. 13.☀️ What is white sunlight really made of? (a) tiny drops of water (b) tiny bits of dust (c) many colours mixed (d) only yellow light
14. 14.⚖️ 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 time of day (b) the same glass (c) brightness of rainbow (d) the amount of water
15. 15.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a sheet of white paper (c) a balloon (d) turmeric powder
16. 16.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a shadow of ice (d) a magnet
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
18. 18.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a magnet (c) yeast (d) a clear glass of water
19. 19.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it floats away (d) it turns all red
20. 20.⚖️ 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
21. 21.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) bright sunlight (d) a balloon
22. 22.True or false: a magnet is needed for the water rainbow. (a) False (b) True
23. 23.⚖️ 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) brightness of rainbow (b) the amount of water (c) the same glass (d) the same window
24. 24.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
25. 25.⚖️ 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 window (c) brightness of rainbow
26. 26.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
27. 27.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a clear glass of water (d) bright sunlight
28. 28.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) orange (c) yellow (d) violet
29. 29.🌈 In VIBGYOR, what number colour is indigo?
30. 30.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) never look at the Sun (d) stare at the Sun
31. 31.⚖️ 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 keep it the same (b) we measure it (c) we change it
32. 32.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
33. 33.⚖️ 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
34. 34.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) in front of you (c) straight above you (d) under the ground
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) turmeric powder (d) a clear glass of water
37. 37.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
38. 38.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
39. 39.🌈 In VIBGYOR, what number colour is violet?
40. 40.🌈 In VIBGYOR, what number colour is blue?

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