Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 881 · 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? Which of these is kept the same? (a) brightness of rainbow (b) the amount of water (c) the time of day
2. 2.🧺 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 battery cell (d) a sunny window
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a magnet (c) a sunny window (d) bright sunlight
4. 4.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
5. 5.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
6. 6.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it turns blue (d) so it gets hot
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
9. 9.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) False (b) True
10. 10.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
11. 11.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) violet (c) orange (d) yellow
12. 12.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) bright sunlight (d) a mirror
13. 13.⚖️ 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
14. 14.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) the rainbow fades (c) it turns brighter (d) it turns all red
15. 15.⚖️ 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
16. 16.⚖️ 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) brightness of rainbow (c) the same white paper (d) the amount of water
17. 17.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
18. 18.🧺 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
19. 19.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
20. 20.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
21. 21.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a balloon (c) a mirror (d) a clear glass of water
22. 22.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) stare at the Sun (d) look at it through glass
23. 23.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
24. 24.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a shadow of ice (d) a magnet
25. 25.⚖️ 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
26. 26.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) behind you (d) straight above you
27. 27.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
28. 28.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
29. 29.True or false: yeast is not needed for the water rainbow. (a) False (b) True
30. 30.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) False (b) True
31. 31.🌈 In VIBGYOR, what number colour is green?
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
34. 34.📘 What do we call light bending as it passes from air into water? (a) reflection (b) evaporation (c) refraction (d) magnetism
35. 35.🌈 In VIBGYOR, what number colour is red?
36. 36.🌈 In VIBGYOR, what number colour is blue?
37. 37.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
38. 38.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) yeast (d) a mirror
39. 39.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) green (c) blue (d) violet
40. 40.⚖️ 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) False (b) True

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