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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 400 · 40 questions
TalentJR

What you do (Dry out, crystals in): 1. An adult pours warm water into a cup. 2. Stir in salt, a spoon at a time, until no more dissolves. 3. Pour the salty water into a shallow dish and lay a string in it. 4. Leave it on a sunny windowsill, out of reach of small children, and check each day.

NameDateTime takenScore ___ / 40
  1. 1.True or false: food colour does not dissolve in water. (a) True (b) False
  2. 2.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “days to see crystals”? (a) we keep it the same (b) we change it (c) we measure it
  3. 3.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) next to the baby (c) in a busy doorway (d) on the edge of a table
  4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a balloon (b) salt (c) a spoon (d) a piece of string
  5. 5.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) days to see crystals (b) the amount of water (c) the amount of salt (d) sunny or shady place
  6. 6.🧂 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) glucose powder (d) cooking oil
  7. 7.🧂 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.True or false: rusting iron is a change that cannot be undone. (a) True (b) False
  9. 9.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) sugar crystals form (c) salt crystals form (d) it turns to oil
  10. 10.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) turmeric powder (c) a battery cell (d) salt
  11. 11.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone
  12. 12.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  13. 13.🛟 Who should pour the warm water for the crystal experiment? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
  14. 14.True or false: glucose powder does not dissolve in water. (a) False (b) True
  15. 15.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is the one thing we change. (a) True (b) False
  16. 16.🧺 Do we need warm water for growing salt crystals? (a) needed (b) not needed
  17. 17.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
  18. 18.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) baking a cake (c) cooking an egg (d) melting butter
  19. 19.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  20. 20.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  21. 21.True or false: melting butter is a change that can be undone. (a) False (b) True
  22. 22.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) salt (c) a balloon (d) a piece of string
  23. 23.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) days to see crystals (b) the same dish (c) sunny or shady place
  25. 25.True or false: rusting iron is a change that can be undone. (a) False (b) True
  26. 26.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a piece of string (c) turmeric powder (d) a mirror
  27. 27.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
  28. 28.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) folding paper (c) browning lemon ink (d) freezing water
  29. 29.True or false: a spoon is not needed for growing salt crystals. (a) False (b) True
  30. 30.True or false: cooking oil does not dissolve in water. (a) False (b) True
  31. 31.🧺 Do we need a spoon for growing salt crystals? (a) needed (b) not needed
  32. 32.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) melting butter (c) folding paper (d) baking a cake
  33. 33.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is the one thing we change. (a) True (b) False
  34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is the one thing we change. (a) True (b) False
  35. 35.🧂 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) sand (d) food colour
  36. 36.True or false: sand does not dissolve in water. (a) True (b) False
  37. 37.🧂 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) small pebbles (d) baking soda
  38. 38.🧂 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  39. 39.🔍 Which is the odd one out? (a) sugar (b) food colour (c) cooking oil (d) table salt
  40. 40.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a magnet (c) warm water (d) turmeric powder

Answer key

  1. False
  2. we measure it
  3. safe from small children
  4. a balloon
  5. days to see crystals
  6. glucose powder
  7. does not dissolve
  8. True
  9. sugar crystals form
  10. salt
  11. cannot be undone
  12. not needed
  13. a grown-up
  14. False
  15. False
  16. needed
  17. needed
  18. melting butter
  19. needed
  20. dissolves in water
  21. True
  22. a balloon
  23. does not dissolve
  24. the same dish
  25. False
  26. a piece of string
  27. can be undone
  28. browning lemon ink
  29. False
  30. True
  31. needed
  32. baking a cake
  33. False
  34. False
  35. sand
  36. True
  37. small pebbles
  38. does not dissolve
  39. cooking oil
  40. warm water

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