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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 795 · 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.

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  1. 1.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) a clear glass of water (d) a balloon
  2. 2.True or false: yeast is needed for the water rainbow. (a) False (b) True
  3. 3.⚖️ 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
  4. 4.⚖️ 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
  5. 5.📘 What do we call light bending as it passes from air into water? (a) reflection (b) magnetism (c) evaporation (d) refraction
  6. 6.⚖️ 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
  7. 7.⚖️ 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 time of day (b) brightness of rainbow (c) the same window (d) the same glass
  8. 8.⚖️ 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) False (b) True
  9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) yeast
  10. 10.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) yeast (d) a sheet of white paper
  11. 11.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) the rainbow fades (c) it floats away (d) it turns brighter
  12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) False (b) True
  13. 13.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a sheet of white paper (d) a balloon
  14. 14.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
  15. 15.⚖️ 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
  16. 16.🧺 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
  17. 17.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) yeast (d) bright sunlight
  18. 18.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
  19. 19.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  20. 20.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a balloon (d) a sheet of white paper
  21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a mirror (d) a clear glass of water
  22. 22.🌈 In VIBGYOR, what number colour is green?
  23. 23.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) balloons (c) magnets (d) clouds
  24. 24.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
  25. 25.⚖️ 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 time of day (b) the amount of water (c) the same window (d) the same white paper
  26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a battery cell (d) a sheet of white paper
  27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) turmeric powder
  28. 28.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it in a mirror (d) look at it through glass
  29. 29.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) a battery cell (d) a sheet of white paper
  30. 30.🛟 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
  31. 31.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) snow falling (d) a small rainbow
  32. 32.⚖️ 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 same white paper (b) brightness of rainbow (c) the amount of water
  33. 33.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) turmeric powder (c) a clear glass of water (d) a sheet of white paper
  34. 34.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
  35. 35.⚖️ 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) brightness of rainbow (c) the same window
  36. 36.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) bright sunlight (c) a clear glass of water (d) a sheet of white paper
  37. 37.⚖️ 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
  38. 38.⚖️ 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) brightness of rainbow (c) the same glass
  39. 39.🌈 In VIBGYOR, what number colour is violet?
  40. 40.⚖️ 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

Answer key

  1. a clear glass of water
  2. False
  3. we keep it the same
  4. False
  5. refraction
  6. False
  7. brightness of rainbow
  8. False
  9. yeast
  10. a sheet of white paper
  11. the rainbow fades
  12. False
  13. a balloon
  14. False
  15. we keep it the same
  16. a magnet
  17. bright sunlight
  18. True
  19. 7
  20. a balloon
  21. a mirror
  22. 4
  23. prisms
  24. needed
  25. the amount of water
  26. a battery cell
  27. turmeric powder
  28. never look at the Sun
  29. a battery cell
  30. so it does not fall
  31. a small rainbow
  32. the same white paper
  33. turmeric powder
  34. True
  35. the same window
  36. yeast
  37. we measure it
  38. the same glass
  39. 1
  40. True

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