Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 276 · 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 white paper”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.⚖️ 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
3. 3.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so the Sun moves (c) so it does not fall (d) so it turns blue
4. 4.🌈 In VIBGYOR, what number colour is blue?
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 window
6. 6.⚖️ 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 time of day (d) the same white paper
7. 7.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
8. 8.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
9. 9.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) a small rainbow (d) snow falling
10. 10.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
11. 11.🌈 How many colours do we name in a rainbow (VIBGYOR)?
12. 12.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) never look at the Sun (d) look at it through glass
13. 13.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
14. 14.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
15. 15.🌈 In VIBGYOR, what number colour is indigo?
16. 16.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) turmeric powder (d) a clear glass of water
17. 17.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a battery cell (c) a sheet of white paper (d) a magnet
18. 18.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) red (c) green (d) blue
19. 19.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
20. 20.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the same glass (c) brightness of rainbow
21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
22. 22.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) the paper makes colours (d) water splits the light
23. 23.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
24. 24.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) False (b) True
26. 26.⚖️ 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
27. 27.⚖️ 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 amount of water (b) the same white paper (c) the same glass (d) brightness of rainbow
28. 28.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
29. 29.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
30. 30.⚖️ 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
31. 31.🧺 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) a balloon
32. 32.True or false: a magnet is needed for the water rainbow. (a) True (b) False
33. 33.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
34. 34.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
35. 35.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a balloon (c) a sheet of white paper (d) bright sunlight
36. 36.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) bright sunlight (c) a balloon (d) a battery cell
37. 37.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) a balloon (c) yeast (d) a mirror
39. 39.🌈 In VIBGYOR, what number colour is orange?
40. 40.⚖️ 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

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