← 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 123 · 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.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
  2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  3. 3.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a mirror (c) a clear glass of water (d) a sheet of white paper
  4. 4.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
  5. 5.⚖️ 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
  6. 6.🌈 In VIBGYOR, what number colour is red?
  7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
  8. 8.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
  9. 9.🌈 In VIBGYOR, what number colour is blue?
  10. 10.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
  11. 11.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) turmeric powder (d) bright sunlight
  12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
  13. 13.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) straight above you (d) behind you
  14. 14.🌈 In VIBGYOR, what number colour is indigo?
  15. 15.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a sunny window (c) a balloon (d) turmeric powder
  16. 16.⚖️ 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) brightness of rainbow (d) the time of day
  17. 17.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) yeast
  18. 18.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
  19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
  20. 20.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it through glass (d) look at it in a mirror
  21. 21.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
  22. 22.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
  23. 23.☀️ What is white sunlight really made of? (a) many colours mixed (b) only yellow light (c) tiny bits of dust (d) tiny drops of water
  24. 24.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
  25. 25.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
  26. 26.🌈 In VIBGYOR, what number colour is green?
  27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
  28. 28.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
  29. 29.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it turns all red (d) it floats away
  30. 30.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a mirror (c) a sheet of white paper (d) a balloon
  31. 31.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
  32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) a magnet
  33. 33.🌈 In VIBGYOR, what number colour is yellow?
  34. 34.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) clouds (c) magnets (d) prisms
  35. 35.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a clear glass of water (c) a sunny window (d) bright sunlight
  36. 36.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) turmeric powder (d) a clear glass of water
  37. 37.⚖️ 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
  38. 38.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a shadow of ice (d) a magnet
  39. 39.True or false: a mirror is needed for the water rainbow. (a) True (b) False
  40. 40.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) reflection (d) refraction

Answer key

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

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