Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 746 · 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.🧺 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 balloon (d) a clear glass of water
2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
3. 3.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
4. 4.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a clear glass of water (c) a sunny window (d) bright sunlight
5. 5.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
6. 6.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
7. 7.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) orange (c) red (d) yellow
8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it turns brighter (c) it floats away (d) the rainbow fades
9. 9.🧺 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) a magnet
10. 10.⚖️ 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
11. 11.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so the Sun moves (d) so it gets hot
12. 12.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is kept the same. (a) False (b) True
14. 14.🔮 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
15. 15.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a sunny window (d) a mirror
16. 16.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) turmeric powder (d) a clear glass of water
17. 17.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a mirror (d) a sheet of white paper
19. 19.🌈 In VIBGYOR, what number colour is red?
20. 20.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) water splits the light (c) the paper makes colours (d) the glass is painted
21. 21.⚖️ 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 white paper
22. 22.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
23. 23.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) clouds (c) magnets (d) prisms
24. 24.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a magnet (d) a sunny window
25. 25.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
26. 26.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.⚖️ 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) False (b) True
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sheet of white paper
30. 30.⚖️ 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) brightness of rainbow (c) the same glass (d) the same window
31. 31.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
32. 32.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
33. 33.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) a balloon (c) a magnet (d) a mirror
34. 34.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a balloon (c) bright sunlight (d) a magnet
35. 35.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
36. 36.True or false: a balloon is needed for the water rainbow. (a) False (b) True
37. 37.⚖️ 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
38. 38.🌈 In VIBGYOR, what number colour is indigo?
39. 39.⚖️ 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 same window (b) the same glass (c) the time of day (d) brightness of rainbow
40. 40.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed

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