← Make a rainbow with water and sunlight lesson New set →

Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 354 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) snow falling (c) a small rainbow (d) a shadow of ice
  2. 2.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) a magnet
  3. 3.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
  4. 4.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
  5. 5.⚖️ 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
  6. 6.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a magnet (d) bright sunlight
  7. 7.🌈 In VIBGYOR, what number colour is orange?
  8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns all red (c) it floats away (d) it turns brighter
  9. 9.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a battery cell (c) a sunny window (d) a magnet
  10. 10.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a magnet (d) a sheet of white paper
  11. 11.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
  12. 12.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  13. 13.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) violet (c) green (d) red
  14. 14.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
  15. 15.🌈 In VIBGYOR, what number colour is violet?
  16. 16.⚖️ 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
  17. 17.🌈 In VIBGYOR, what number colour is red?
  18. 18.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
  19. 19.🌈 In VIBGYOR, what number colour is yellow?
  20. 20.📘 What do we call light bending as it passes from air into water? (a) reflection (b) magnetism (c) evaporation (d) refraction
  21. 21.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
  22. 22.⚖️ 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 glass (b) the amount of water (c) the same window (d) the same white paper
  23. 23.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so the Sun moves (d) so it does not fall
  24. 24.🌈 In VIBGYOR, what number colour is blue?
  25. 25.🧺 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 sheet of white paper
  26. 26.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
  27. 27.🧺 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) yeast (d) a sunny window
  28. 28.⚖️ 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 time of day (d) the same window
  29. 29.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
  30. 30.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
  31. 31.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) behind you (c) straight above you (d) in front of you
  32. 32.⚖️ 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 keep it the same (c) we measure it
  33. 33.⚖️ 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) False (b) True
  34. 34.🌈 In VIBGYOR, what number colour is green?
  35. 35.⚖️ 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
  36. 36.⚖️ 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 change it (c) we keep it the same
  37. 37.🌈 In VIBGYOR, what number colour is indigo?
  38. 38.True or false: a magnet is needed for the water rainbow. (a) False (b) True
  39. 39.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) yeast (c) bright sunlight (d) a clear glass of water
  40. 40.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed

Answer key

  1. a small rainbow
  2. a magnet
  3. needed
  4. False
  5. we keep it the same
  6. bright sunlight
  7. 6
  8. the rainbow fades
  9. a sunny window
  10. a sheet of white paper
  11. True
  12. 7
  13. red
  14. not needed
  15. 1
  16. True
  17. 7
  18. not needed
  19. 5
  20. refraction
  21. True
  22. the amount of water
  23. so it does not fall
  24. 3
  25. turmeric powder
  26. needed
  27. yeast
  28. brightness of rainbow
  29. prisms
  30. True
  31. behind you
  32. we measure it
  33. False
  34. 4
  35. True
  36. we keep it the same
  37. 2
  38. False
  39. yeast
  40. needed

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