Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 478 · 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) a clear glass of water (b) yeast (c) a magnet (d) turmeric powder
2. 2.⚖️ 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 measure it (b) we keep it the same (c) we change it
3. 3.🌈 How many colours do we name in a rainbow (VIBGYOR)?
4. 4.⚖️ 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
5. 5.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) violet (d) green
6. 6.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sunny window
7. 7.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
8. 8.🌈 In VIBGYOR, what number colour is yellow?
9. 9.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny bits of dust (c) tiny drops of water (d) only yellow light
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) True (b) False
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) False (b) True
12. 12.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
13. 13.🛟 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
14. 14.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it turns blue (c) so it gets hot (d) so it does not fall
15. 15.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a mirror (d) a sunny window
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 measure it (b) we keep it the same (c) we change it
17. 17.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) bright sunlight (d) a magnet
18. 18.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
19. 19.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) yeast (c) a clear glass of water (d) a sunny window
21. 21.🌈 In VIBGYOR, what number colour is red?
22. 22.🌈 In VIBGYOR, what number colour is orange?
23. 23.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
24. 24.🧺 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 mirror (d) bright sunlight
25. 25.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) it turns all red (d) the rainbow fades
26. 26.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
27. 27.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) prisms (c) balloons (d) clouds
28. 28.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
29. 29.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) bright sunlight (d) a magnet
31. 31.⚖️ 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 window (c) the same white paper (d) brightness of rainbow
32. 32.⚖️ 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 change it (b) we keep it the same (c) we measure it
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) bright sunlight (c) a sunny window (d) a sheet of white paper
34. 34.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
35. 35.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a magnet (c) a sheet of white paper (d) a balloon
36. 36.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
37. 37.True or false: a magnet is needed for the water rainbow. (a) False (b) True
38. 38.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
39. 39.⚖️ 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 time of day (c) the amount of water
40. 40.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed

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