Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 810 · 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.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
2. 2.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
3. 3.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a magnet (d) a sunny window
4. 4.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) False (b) True
5. 5.True or false: a balloon is needed for the water rainbow. (a) True (b) False
6. 6.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) bright sunlight (c) a clear glass of water (d) a balloon
7. 7.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a balloon (c) turmeric powder (d) a sunny window
8. 8.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
9. 9.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) the water is coloured (c) the glass is painted (d) water splits the light
10. 10.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
11. 11.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
12. 12.⚖️ 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) False (b) True
13. 13.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a mirror (c) a magnet (d) a sheet of white paper
14. 14.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
15. 15.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) look at it through glass (d) stare at the Sun
16. 16.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) straight above you (c) under the ground (d) in front of you
17. 17.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) yeast
18. 18.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
19. 19.🧺 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 mirror
20. 20.🌈 How many colours do we name in a rainbow (VIBGYOR)?
21. 21.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) orange (c) red (d) yellow
22. 22.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
23. 23.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) a shadow of ice (c) a magnet (d) snow falling
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
25. 25.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
26. 26.⚖️ 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
27. 27.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) it turns all red (d) the rainbow fades
28. 28.True or false: yeast is not needed for the water rainbow. (a) True (b) False
29. 29.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a battery cell (c) a clear glass of water (d) a magnet
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) yeast (c) bright sunlight (d) a balloon
32. 32.🌈 In VIBGYOR, what number colour is green?
33. 33.🌈 In VIBGYOR, what number colour is blue?
34. 34.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) prisms (c) balloons (d) clouds
35. 35.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
36. 36.⚖️ 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
37. 37.🌈 In VIBGYOR, what number colour is red?
38. 38.True or false: a magnet is needed for the water rainbow. (a) False (b) True
39. 39.⚖️ 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 window (c) the same white paper (d) brightness of rainbow
40. 40.🌈 In VIBGYOR, what number colour is yellow?

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