Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 624 · 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.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) prisms (c) magnets (d) clouds
2. 2.🌈 In VIBGYOR, what number colour is red?
3. 3.🌈 In VIBGYOR, what number colour is blue?
4. 4.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a mirror (c) a balloon (d) a magnet
5. 5.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
6. 6.🌦️ 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
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 white paper (c) brightness of rainbow (d) the amount of water
8. 8.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
9. 9.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
10. 10.⚖️ 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 measure it (c) we change it
11. 11.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a magnet (c) a small rainbow (d) a shadow of ice
12. 12.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) orange (d) red
13. 13.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
14. 14.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
15. 15.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
16. 16.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
17. 17.🌈 How many colours do we name in a rainbow (VIBGYOR)?
18. 18.🌈 In VIBGYOR, what number colour is orange?
19. 19.⚖️ 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 amount of water (c) the same glass (d) the same window
20. 20.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) look at it through glass (c) stare at the Sun (d) never look at the Sun
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a balloon (c) a sheet of white paper (d) bright sunlight
22. 22.🧺 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 sheet of white paper (d) yeast
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
24. 24.🧺 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) a sunny window
25. 25.🌈 In VIBGYOR, what number colour is yellow?
26. 26.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) turmeric powder (c) a sheet of white paper (d) a sunny window
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a sunny window (c) bright sunlight (d) a clear glass of water
28. 28.⚖️ 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
29. 29.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a magnet (d) a mirror
30. 30.⚖️ 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 change it (c) we measure it
31. 31.🌈 In VIBGYOR, what number colour is green?
32. 32.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.⚖️ 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 measure it (c) we keep it the same
35. 35.🛟 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 gets hot (d) so it does not fall
36. 36.☀️ What is white sunlight really made of? (a) many colours mixed (b) only yellow light (c) tiny bits of dust (d) tiny drops of water
37. 37.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) water splits the light (c) the water is coloured (d) the glass is painted
38. 38.⚖️ 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
39. 39.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
40. 40.⚖️ 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

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