Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 83 · 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? What do we do with “the same window”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) magnetism (c) reflection (d) refraction
3. 3.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the same window (c) the same white paper (d) the amount of water
4. 4.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
5. 5.☀️ What is white sunlight really made of? (a) only yellow light (b) many colours mixed (c) tiny bits of dust (d) tiny drops of water
6. 6.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a sheet of white paper (d) a battery cell
7. 7.⚖️ 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) True (b) False
8. 8.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
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: the same white paper is the one thing we change. (a) False (b) True
11. 11.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
12. 12.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
13. 13.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
14. 14.⚖️ 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 white paper (b) the amount of water (c) the same glass (d) the time of day
15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a mirror (c) a sheet of white paper (d) a clear glass of water
16. 16.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
17. 17.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
18. 18.🧺 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 magnet (d) a clear glass of water
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a battery cell (c) a sunny window (d) bright sunlight
20. 20.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so it does not fall (d) so the Sun moves
21. 21.🌈 How many colours do we name in a rainbow (VIBGYOR)?
22. 22.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) in front of you (d) behind you
23. 23.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) yeast (c) a battery cell (d) a clear glass of water
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) False (b) True
27. 27.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) a sheet of white paper (d) a magnet
28. 28.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.🌈 In VIBGYOR, what number colour is red?
31. 31.🌈 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
32. 32.True or false: a magnet is needed for the water rainbow. (a) False (b) True
33. 33.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) it turns brighter (d) the rainbow fades
34. 34.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) a sheet of white paper (d) turmeric powder
35. 35.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a balloon (d) bright sunlight
36. 36.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
37. 37.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) violet (c) green (d) blue
38. 38.⚖️ 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) False (b) True
39. 39.🧺 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
40. 40.True or false: yeast is needed for the water rainbow. (a) True (b) False

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