Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 121 · 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.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) red (c) violet (d) yellow
2. 2.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
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 measure it (b) we keep it the same (c) we change it
4. 4.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) turmeric powder (d) a sunny window
5. 5.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) turmeric powder (c) yeast (d) a sheet of white paper
6. 6.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
7. 7.⚖️ 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 same glass (b) the same window (c) the same white paper (d) the amount of water
8. 8.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) a magnet (c) snow falling (d) a shadow of ice
9. 9.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) turmeric powder
11. 11.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) a magnet
12. 12.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny bits of dust (c) many colours mixed (d) tiny drops of water
13. 13.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) clouds (c) magnets (d) balloons
14. 14.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
18. 18.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) yeast (d) a mirror
19. 19.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
20. 20.🌈 How many colours do we name in a rainbow (VIBGYOR)?
21. 21.🧺 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 mirror
22. 22.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) look at it in a mirror (d) never look at the Sun
23. 23.True or false: yeast is needed for the water rainbow. (a) True (b) False
24. 24.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) the rainbow fades (d) it turns all red
25. 25.🌈 In VIBGYOR, what number colour is green?
26. 26.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
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) brightness of rainbow (b) the same window (c) the amount of water
28. 28.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) yeast (d) bright sunlight
29. 29.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
30. 30.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a balloon (c) a magnet (d) bright sunlight
31. 31.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
34. 34.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
35. 35.⚖️ 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
36. 36.🌈 In VIBGYOR, what number colour is violet?
37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) a sunny window (d) a balloon
38. 38.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
39. 39.⚖️ 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 same glass
40. 40.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) yeast (d) a sheet of white paper

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