Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 976 · 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 a clear glass of water for the water rainbow? (a) not needed (b) needed
2. 2.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
3. 3.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) orange (c) violet (d) yellow
4. 4.⚖️ 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
5. 5.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it turns all red (d) it floats away
6. 6.🛟 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
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 amount of water (c) brightness of rainbow (d) the same white paper
8. 8.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
9. 9.🧺 Do we need a sunny window 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? True or false: the time of day is kept the same. (a) True (b) False
11. 11.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
12. 12.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) turmeric powder (c) bright sunlight (d) a sheet of white paper
13. 13.🌈 How many colours do we name in a rainbow (VIBGYOR)?
14. 14.🧺 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) a sunny window (d) a mirror
15. 15.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
16. 16.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a mirror (c) a clear glass of water (d) a sheet of white paper
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) yeast (c) bright sunlight (d) a mirror
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) yeast (d) bright sunlight
20. 20.⚖️ 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 keep it the same (b) we change it (c) we measure it
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a clear glass of water (c) a sunny window (d) bright sunlight
22. 22.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) True (b) False
24. 24.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
25. 25.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a balloon (d) a sunny window
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.🌈 In VIBGYOR, what number colour is red?
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a magnet (d) a clear glass of water
30. 30.🧺 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 battery cell (d) a clear glass of water
31. 31.🌈 In VIBGYOR, what number colour is orange?
32. 32.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) behind you (d) under the ground
33. 33.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) the water is coloured (c) water splits the light (d) the paper makes colours
34. 34.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
35. 35.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
36. 36.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) False (b) True
37. 37.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
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? True or false: the same white paper is what we measure. (a) False (b) True
40. 40.⚖️ 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 keep it the same (c) we measure it

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids