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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 396 · 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.

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  1. 1.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) sand (d) chalk powder
  2. 2.🔍 Which is the odd one out? (a) glucose powder (b) small pebbles (c) sugar (d) baking soda
  3. 3.⚖️ 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 measure it (b) we keep it the same (c) we change it
  4. 4.True or false: a spoon is needed for growing salt crystals. (a) True (b) False
  5. 5.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) baking a cake (c) rusting iron (d) freezing water
  6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is what we measure. (a) False (b) True
  7. 7.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is the one thing we change? (a) the amount of salt (b) the amount of water (c) sunny or shady place (d) the same dish
  8. 8.🧂 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.True or false: a piece of string is not needed for growing salt crystals. (a) True (b) False
  10. 10.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
  11. 11.True or false: food colour dissolves in water. (a) False (b) True
  12. 12.🧂 Which of these does not dissolve in water? (a) sawdust (b) sugar (c) baking soda (d) table salt
  13. 13.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a magnet (b) a shallow dish (c) a piece of string (d) salt
  14. 14.🧂 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  15. 15.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  16. 16.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  17. 17.True or false: a mirror is needed for growing salt crystals. (a) True (b) False
  18. 18.True or false: melting ice is a change that can be undone. (a) True (b) False
  19. 19.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) salt crystals form (c) sugar crystals form (d) it turns to oil
  20. 20.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) warm water (d) a balloon
  21. 21.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) safe from small children (c) in a busy doorway (d) on the edge of a table
  22. 22.🧂 Which of these does not dissolve in water? (a) food colour (b) chalk powder (c) sugar (d) glucose powder
  23. 23.True or false: a magnet is not needed for growing salt crystals. (a) True (b) False
  24. 24.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) warm water (d) yeast
  25. 25.📘 What do we call a solution that cannot dissolve any more salt? (a) frozen (b) saturated (c) empty (d) magnetic
  26. 26.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
  27. 27.🧈 Can this change be undone: browning lemon ink? (a) cannot be undone (b) can be undone
  28. 28.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) the amount of salt (b) sunny or shady place (c) days to see crystals
  29. 29.True or false: sand dissolves in water. (a) False (b) True
  30. 30.True or false: baking soda does not dissolve in water. (a) False (b) True
  31. 31.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a battery cell (c) a shallow dish (d) turmeric powder
  32. 32.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is kept the same. (a) True (b) False
  33. 33.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
  34. 34.True or false: yeast is not needed for growing salt crystals. (a) False (b) True
  35. 35.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) baking a cake (c) rusting iron (d) dissolving salt
  36. 36.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) cooking oil (d) table salt
  37. 37.🧺 Do we need a balloon for growing salt crystals? (a) not needed (b) needed
  38. 38.True or false: table salt does not dissolve in water. (a) True (b) False
  39. 39.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a piece of string (c) warm water (d) a battery cell
  40. 40.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. sugar
  2. small pebbles
  3. we measure it
  4. True
  5. freezing water
  6. False
  7. sunny or shady place
  8. does not dissolve
  9. False
  10. needed
  11. True
  12. sawdust
  13. a magnet
  14. dissolves in water
  15. does not dissolve
  16. does not dissolve
  17. False
  18. True
  19. sugar crystals form
  20. a balloon
  21. safe from small children
  22. chalk powder
  23. True
  24. yeast
  25. saturated
  26. not needed
  27. cannot be undone
  28. the amount of salt
  29. False
  30. False
  31. a shallow dish
  32. True
  33. can be undone
  34. True
  35. dissolving salt
  36. cooking oil
  37. not needed
  38. False
  39. a battery cell
  40. dissolves in water

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