Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 278 · 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.🌈 How many colours do we name in a rainbow (VIBGYOR)?
2. 2.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
3. 3.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.⚖️ 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 same white paper
6. 6.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
7. 7.🌈 In VIBGYOR, what number colour is violet?
8. 8.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) yeast (c) a mirror (d) a sheet of white paper
9. 9.⚖️ 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 change it (c) we measure it
10. 10.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
11. 11.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the paper makes colours (c) the glass is painted (d) the water is coloured
12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) True (b) False
13. 13.True or false: a magnet is needed for the water rainbow. (a) False (b) True
14. 14.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a magnet (d) bright sunlight
15. 15.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) the rainbow fades (d) it turns all red
16. 16.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so it turns blue (c) so it gets hot (d) so the Sun moves
17. 17.⚖️ 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 measure it (c) we change it
18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a sheet of white paper (d) a mirror
19. 19.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) balloons (c) prisms (d) magnets
20. 20.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) a sunny window (d) a battery cell
21. 21.⚖️ 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) brightness of rainbow (b) the amount of water (c) the same window (d) the time of day
22. 22.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a battery cell (c) a clear glass of water (d) bright sunlight
24. 24.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
25. 25.True or false: turmeric powder 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? Which of these is kept the same? (a) brightness of rainbow (b) the same glass (c) the amount of water
27. 27.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
28. 28.⚖️ 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
29. 29.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) reflection (c) evaporation (d) refraction
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a magnet (d) a clear glass of water
31. 31.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) turmeric powder (d) a sheet of white paper
33. 33.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) turmeric powder (c) a clear glass of water (d) a sunny window
34. 34.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🌈 In VIBGYOR, what number colour is indigo?
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
39. 39.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a balloon (d) a clear glass of water
40. 40.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed

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