Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 706 · 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 the one thing we change? (a) the same white paper (b) the same glass (c) the same window (d) the amount of water
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 the one thing we change. (a) True (b) False
3. 3.⚖️ 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
4. 4.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) in front of you (c) under the ground (d) behind you
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.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
7. 7.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it floats away (c) it turns all red (d) it turns brighter
9. 9.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) stare at the Sun (d) look at it through glass
10. 10.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
11. 11.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so it gets hot (d) so the Sun moves
12. 12.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) orange (d) red
13. 13.⚖️ 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
14. 14.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
15. 15.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.⚖️ 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
18. 18.📘 What do we call light bending as it passes from air into water? (a) reflection (b) magnetism (c) refraction (d) evaporation
19. 19.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
20. 20.⚖️ 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 measure it (b) we change it (c) we keep it the same
21. 21.🌈 How many colours do we name in a rainbow (VIBGYOR)?
22. 22.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) yeast (c) a balloon (d) turmeric powder
23. 23.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a clear glass of water (d) a battery cell
24. 24.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) violet (d) green
25. 25.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) turmeric powder (c) a clear glass of water (d) a magnet
26. 26.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
27. 27.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
28. 28.☀️ What is white sunlight really made of? (a) tiny drops of water (b) only yellow light (c) tiny bits of dust (d) many colours mixed
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) yeast (d) a clear glass of water
30. 30.⚖️ 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 white paper (b) brightness of rainbow (c) the same glass (d) the time of day
31. 31.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a sunny window (c) a sheet of white paper (d) bright sunlight
34. 34.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the glass is painted (c) the water is coloured (d) the paper makes colours
35. 35.🌈 In VIBGYOR, what number colour is blue?
36. 36.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a battery cell (c) a sheet of white paper (d) turmeric powder
37. 37.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) magnets (c) prisms (d) balloons
38. 38.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) bright sunlight (c) yeast (d) a magnet
39. 39.🌈 In VIBGYOR, what number colour is green?
40. 40.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a magnet (c) bright sunlight (d) a sunny window

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