Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 280 · 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.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) True (b) False
2. 2.⚖️ 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 time of day (b) the same white paper (c) brightness of rainbow (d) the same window
3. 3.⚖️ 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 amount of water (c) the time of day
4. 4.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a battery cell (c) bright sunlight (d) turmeric powder
5. 5.True or false: a mirror is needed for the water rainbow. (a) True (b) False
6. 6.⚖️ 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
7. 7.🌈 In VIBGYOR, what number colour is blue?
8. 8.⚖️ 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 amount of water (d) the time of day
9. 9.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a sheet of white paper (d) a mirror
10. 10.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a mirror (c) a sunny window (d) a battery cell
11. 11.🌈 In VIBGYOR, what number colour is green?
12. 12.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
13. 13.🧺 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) bright sunlight (d) yeast
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) bright sunlight (c) a sunny window (d) a clear glass of water
15. 15.🌈 How many colours do we name in a rainbow (VIBGYOR)?
16. 16.🌈 In VIBGYOR, what number colour is indigo?
17. 17.🌈 In VIBGYOR, what number colour is yellow?
18. 18.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the water is coloured (c) the paper makes colours (d) the glass is painted
19. 19.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a small rainbow (c) snow falling (d) a shadow of ice
20. 20.🌈 In VIBGYOR, what number colour is red?
21. 21.🧺 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) bright sunlight (d) a mirror
22. 22.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
23. 23.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) yeast
24. 24.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a balloon (c) turmeric powder (d) a clear glass of water
25. 25.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
28. 28.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) red (c) orange (d) yellow
29. 29.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
30. 30.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) a magnet (d) a sheet of white paper
31. 31.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
32. 32.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
33. 33.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
34. 34.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) violet (c) red (d) green
35. 35.True or false: a balloon is needed for the water rainbow. (a) False (b) True
36. 36.⚖️ 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
37. 37.True or false: yeast is not needed for the water rainbow. (a) True (b) False
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🌈 In VIBGYOR, what number colour is violet?

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