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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 671 · 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: warm water is not needed for growing salt crystals. (a) False (b) True
  2. 2.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of salt”? (a) we keep it the same (b) we change it (c) we measure it
  3. 3.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) saturated (d) frozen
  4. 4.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
  5. 5.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) a balloon (c) a piece of string (d) a spoon
  6. 6.🌊 How is salt made in salt pans by the sea? (a) sea water evaporates (b) fish make it (c) sand is ground up (d) salt rains down
  7. 7.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) a magnet (c) salt (d) a balloon
  8. 8.🧈 Which of these is a change that cannot be undone? (a) dissolving salt (b) melting ice (c) baking a cake (d) freezing water
  9. 9.🧂 Which of these dissolves in water? (a) sand (b) food colour (c) sawdust (d) cooking oil
  10. 10.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a mirror (b) salt (c) a piece of string (d) a spoon
  11. 11.True or false: food colour does not dissolve in water. (a) False (b) True
  12. 12.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is what we measure. (a) True (b) False
  13. 13.True or false: baking soda dissolves in water. (a) True (b) False
  14. 14.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
  15. 15.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a shallow dish (c) salt (d) a battery cell
  16. 16.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  17. 17.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) baking soda (d) glucose powder
  18. 18.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the same dish”? (a) we keep it the same (b) we change it (c) we measure it
  19. 19.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) on the edge of a table (c) safe from small children (d) next to the baby
  20. 20.🧈 Can this change be undone: browning lemon ink? (a) cannot be undone (b) can be undone
  21. 21.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) salt (c) yeast (d) a spoon
  22. 22.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
  23. 23.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  24. 24.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) it turns to oil (c) salt crystals form (d) sugar crystals form
  25. 25.⚖️ 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) sunny or shady place (b) the amount of water (c) the kind of salt (d) the same dish
  26. 26.🧂 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  27. 27.True or false: dissolving salt is a change that cannot be undone. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) baking soda (b) sand (c) table salt (d) sugar
  29. 29.True or false: milk turning to curd is a change that cannot be undone. (a) False (b) True
  30. 30.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) glucose powder (d) table salt
  31. 31.True or false: a spoon is needed for growing salt crystals. (a) True (b) False
  32. 32.🧂 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) table salt (d) chalk powder
  33. 33.True or false: chalk powder dissolves in water. (a) True (b) False
  34. 34.True or false: small pebbles does not dissolve in water. (a) False (b) True
  35. 35.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  36. 36.True or false: salt is not needed for growing salt crystals. (a) True (b) False
  37. 37.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is kept the same. (a) False (b) True
  38. 38.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) warm water (c) a shallow dish (d) a magnet
  39. 39.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) the amount of water (b) the same dish (c) days to see crystals (d) the kind of salt
  40. 40.True or false: warm water is needed for growing salt crystals. (a) False (b) True

Answer key

  1. False
  2. we keep it the same
  3. saturated
  4. a grown-up
  5. a balloon
  6. sea water evaporates
  7. salt
  8. baking a cake
  9. food colour
  10. a mirror
  11. False
  12. True
  13. True
  14. can be undone
  15. a battery cell
  16. dissolves in water
  17. sawdust
  18. we keep it the same
  19. safe from small children
  20. cannot be undone
  21. yeast
  22. needed
  23. not needed
  24. sugar crystals form
  25. sunny or shady place
  26. does not dissolve
  27. False
  28. sand
  29. True
  30. small pebbles
  31. True
  32. chalk powder
  33. False
  34. True
  35. needed
  36. False
  37. True
  38. a magnet
  39. days to see crystals
  40. True

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