Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 376 · 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 sunny window (b) a balloon (c) bright sunlight (d) a clear glass of water
2. 2.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) prisms (c) magnets (d) balloons
3. 3.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
4. 4.🌈 How many colours do we name in a rainbow (VIBGYOR)?
5. 5.🌈 In VIBGYOR, what number colour is violet?
6. 6.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a small rainbow (c) snow falling (d) a magnet
7. 7.⚖️ 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 window
8. 8.True or false: a magnet is needed for the water rainbow. (a) False (b) True
9. 9.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.⚖️ 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 glass (d) brightness of rainbow
12. 12.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) in front of you (c) behind you (d) straight above you
13. 13.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so the Sun moves (d) so it does not fall
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 amount of water (b) the same glass (c) brightness of rainbow (d) the same white paper
15. 15.🧺 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) yeast (d) a sheet of white paper
16. 16.🌈 In VIBGYOR, what number colour is indigo?
17. 17.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) refraction (c) magnetism (d) reflection
18. 18.🧺 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
19. 19.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) yeast (d) a clear glass of water
20. 20.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it through glass (d) look at it in a mirror
21. 21.⚖️ 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) False (b) True
22. 22.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
23. 23.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a clear glass of water (c) turmeric powder (d) yeast
24. 24.☀️ 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
25. 25.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) a magnet (d) bright sunlight
26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
27. 27.🌈 In VIBGYOR, what number colour is yellow?
28. 28.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) blue (c) red (d) violet
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.🌈 In VIBGYOR, what number colour is orange?
31. 31.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) bright sunlight (d) a sunny window
32. 32.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.⚖️ 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
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 what we measure. (a) True (b) False
36. 36.🌈 In VIBGYOR, what number colour is blue?
37. 37.🧺 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) turmeric powder (d) bright sunlight
38. 38.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
39. 39.True or false: a balloon is needed for the water rainbow. (a) True (b) False
40. 40.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False

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