Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 380 · 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.🌈 In VIBGYOR, what number colour is violet?
2. 2.⚖️ 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
3. 3.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
4. 4.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) yeast (c) bright sunlight (d) a clear glass of water
5. 5.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) the water is coloured (c) water splits the light (d) the glass is painted
6. 6.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it through glass (d) look at it in a mirror
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a mirror (c) a sunny window (d) a sheet of white paper
9. 9.🌈 In VIBGYOR, what number colour is orange?
10. 10.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
11. 11.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) True (b) False
12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) a battery cell (d) bright sunlight
13. 13.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) a battery cell
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a sheet of white paper (c) a clear glass of water (d) a sunny window
15. 15.🛟 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
16. 16.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) bright sunlight (d) a balloon
17. 17.⚖️ 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 white paper (c) brightness of rainbow (d) the same window
18. 18.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) True (b) False
20. 20.⚖️ 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
21. 21.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) violet (c) blue (d) green
22. 22.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) straight above you (d) behind you
23. 23.True or false: a mirror is needed for the water rainbow. (a) False (b) True
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 white paper”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.⚖️ 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) True (b) False
26. 26.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) orange (d) violet
27. 27.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) turmeric powder (d) bright sunlight
29. 29.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) a magnet (d) a sunny window
31. 31.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) yeast (c) a mirror (d) a battery cell
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) bright sunlight (d) a clear glass of water
34. 34.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
35. 35.⚖️ 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 keep it the same (c) we change it
36. 36.⚖️ 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 white paper (c) the amount of water
37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sunny window (c) a sheet of white paper (d) bright sunlight
38. 38.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny bits of dust (c) tiny drops of water (d) many colours mixed
39. 39.⚖️ 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 keep it the same (b) we measure it (c) we change it
40. 40.True or false: a balloon is not needed for the water rainbow. (a) True (b) False

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