Rainbow Science Experiment Worksheet

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

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