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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 267 · 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: glucose powder dissolves in water. (a) False (b) True
  2. 2.True or false: freezing water is a change that can be undone. (a) True (b) False
  3. 3.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a magnet (c) turmeric powder (d) a shallow dish
  4. 4.🧺 Do we need yeast for growing salt crystals? (a) not needed (b) needed
  5. 5.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) it fizzes (c) few or no crystals (d) crystals grow faster
  6. 6.True or false: a balloon is not needed for growing salt crystals. (a) False (b) True
  7. 7.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a mirror (c) a piece of string (d) a spoon
  8. 8.🧂 Which of these dissolves in water? (a) cooking oil (b) table salt (c) sand (d) small pebbles
  9. 9.🛟 Who should pour the warm water for the crystal experiment? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
  10. 10.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
  11. 11.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sand (d) food colour
  12. 12.True or false: freezing water is a change that cannot be undone. (a) True (b) False
  13. 13.True or false: salt is not needed for growing salt crystals. (a) False (b) True
  14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is kept the same. (a) False (b) True
  15. 15.🧂 Which of these dissolves in water? (a) chalk powder (b) sand (c) food colour (d) small pebbles
  16. 16.True or false: sugar does not dissolve in water. (a) True (b) False
  17. 17.⚖️ 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 kind of salt (b) days to see crystals (c) sunny or shady place
  18. 18.🧈 Can this change be undone: milk turning to curd? (a) can be undone (b) cannot be undone
  19. 19.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
  20. 20.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
  21. 21.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is what we measure. (a) True (b) False
  22. 22.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a magnet (c) salt (d) a shallow dish
  23. 23.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) yeast (b) salt (c) a shallow dish (d) a spoon
  24. 24.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the kind of salt”? (a) we change it (b) we measure it (c) we keep it the same
  25. 25.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  26. 26.🧂 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  27. 27.True or false: melting ice is a change that cannot be undone. (a) False (b) True
  28. 28.True or false: a battery cell is needed for growing salt crystals. (a) False (b) True
  29. 29.🧂 Which of these does not dissolve in water? (a) table salt (b) sawdust (c) food colour (d) baking soda
  30. 30.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) warm water (c) a balloon (d) salt
  31. 31.True or false: sand does not dissolve in water. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) glucose powder (d) sugar
  33. 33.🔍 Which is the odd one out? (a) sugar (b) food colour (c) glucose powder (d) chalk powder
  34. 34.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  35. 35.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny stars (c) tiny triangles (d) tiny spheres
  36. 36.⚖️ 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 change it (b) we measure it (c) we keep it the same
  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.True or false: food colour does not dissolve in water. (a) False (b) True
  39. 39.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) freezing water (c) dissolving salt (d) rusting iron
  40. 40.🧺 Which of these is not needed for growing salt crystals? (a) a magnet (b) warm water (c) a spoon (d) a shallow dish

Answer key

  1. True
  2. True
  3. a shallow dish
  4. not needed
  5. few or no crystals
  6. True
  7. a mirror
  8. table salt
  9. a grown-up
  10. needed
  11. sand
  12. False
  13. False
  14. False
  15. food colour
  16. False
  17. the kind of salt
  18. cannot be undone
  19. needed
  20. not needed
  21. False
  22. a magnet
  23. yeast
  24. we keep it the same
  25. needed
  26. does not dissolve
  27. False
  28. False
  29. sawdust
  30. a balloon
  31. True
  32. sawdust
  33. chalk powder
  34. not needed
  35. tiny cubes
  36. we keep it the same
  37. True
  38. False
  39. rusting iron
  40. a magnet

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