Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 824 · 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) bright sunlight (b) a sheet of white paper (c) a sunny window (d) a magnet
2. 2.🌈 In VIBGYOR, what number colour is red?
3. 3.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) balloons (c) magnets (d) prisms
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.🌈 In VIBGYOR, what number colour is green?
6. 6.⚖️ 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) True (b) False
7. 7.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
8. 8.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
9. 9.🌈 In VIBGYOR, what number colour is yellow?
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 kept the same. (a) False (b) True
11. 11.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) behind you (c) under the ground (d) in front of you
12. 12.⚖️ 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 same white paper
13. 13.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
14. 14.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
15. 15.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) yeast (c) a battery cell (d) bright sunlight
16. 16.⚖️ 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 time of day (c) the amount of water
17. 17.⚖️ 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 same glass (b) the amount of water (c) brightness of rainbow
18. 18.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
19. 19.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
20. 20.🌈 How many colours do we name in a rainbow (VIBGYOR)?
21. 21.🛟 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
22. 22.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sunny window
23. 23.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) a sunny window (d) a balloon
24. 24.⚖️ 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 glass (b) the same window (c) the amount of water (d) brightness of rainbow
25. 25.True or false: a mirror 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? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🌈 In VIBGYOR, what number colour is violet?
28. 28.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) a sunny window (d) a balloon
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 keep it the same (b) we change it (c) we measure it
30. 30.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) bright sunlight (d) a mirror
32. 32.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
33. 33.True or false: a magnet is needed for the water rainbow. (a) True (b) False
34. 34.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
35. 35.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
36. 36.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
37. 37.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it turns all red (c) the rainbow fades (d) it floats away
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) look at it in a mirror (d) stare at the Sun
40. 40.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a battery cell (c) bright sunlight (d) a clear glass of water

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