← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 761 · 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.🧂 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
  2. 2.True or false: warm water is not needed for growing salt crystals. (a) True (b) False
  3. 3.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a balloon (c) salt (d) a piece of string
  4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) turmeric powder (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 salt (c) sunny or shady place (d) the kind of salt
  6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  7. 7.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  8. 8.🧈 Can this change be undone: dissolving salt? (a) can be undone (b) cannot be undone
  9. 9.True or false: yeast is needed for growing salt crystals. (a) True (b) False
  10. 10.True or false: milk turning to curd is a change that can be undone. (a) True (b) False
  11. 11.🧈 Can this change be undone: baking a cake? (a) can be undone (b) cannot be undone
  12. 12.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny stars (c) tiny triangles (d) tiny spheres
  13. 13.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) a magnet (c) a shallow dish (d) a battery cell
  14. 14.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
  15. 15.True or false: folding paper is a change that can be undone. (a) True (b) False
  16. 16.⚖️ 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) True (b) False
  17. 17.🧺 Which of these is not needed for growing salt crystals? (a) turmeric powder (b) a shallow dish (c) salt (d) a spoon
  18. 18.🧂 Why do crystals appear as the dish dries? (a) salt grows roots (b) water evaporates (c) the dish melts (d) salt eats water
  19. 19.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is kept the same. (a) True (b) False
  20. 20.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a magnet (c) a piece of string (d) salt
  21. 21.True or false: a spoon is not needed for growing salt crystals. (a) False (b) True
  22. 22.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
  23. 23.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to oil (b) sugar crystals form (c) it turns to butter (d) salt crystals form
  24. 24.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) browning lemon ink (c) milk turning to curd (d) dissolving salt
  25. 25.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) safe from small children (c) next to the baby (d) on the edge of a table
  26. 26.🧈 Can this change be undone: browning lemon ink? (a) cannot be undone (b) can be undone
  27. 27.True or false: glucose powder dissolves in water. (a) True (b) False
  28. 28.⚖️ 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 measure it (b) we keep it the same (c) we change it
  29. 29.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) table salt (d) sawdust
  30. 30.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a mirror (c) salt (d) warm water
  31. 31.True or false: a shallow dish is needed for growing salt crystals. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) chalk powder (d) sand
  33. 33.True or false: melting butter is a change that cannot be undone. (a) True (b) False
  34. 34.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) bigger crystals (c) no crystals (d) smaller crystals
  35. 35.🧺 Which of these is needed for growing salt crystals? (a) a spoon (b) yeast (c) a mirror (d) turmeric powder
  36. 36.True or false: a magnet is needed for growing salt crystals. (a) True (b) False
  37. 37.True or false: freezing water is a change that can be undone. (a) True (b) False
  38. 38.True or false: a mirror is not needed for growing salt crystals. (a) False (b) True
  39. 39.🧂 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
  40. 40.True or false: warm water is needed for growing salt crystals. (a) False (b) True

Answer key

  1. does not dissolve
  2. False
  3. a balloon
  4. turmeric powder
  5. days to see crystals
  6. we keep it the same
  7. dissolves in water
  8. can be undone
  9. False
  10. False
  11. cannot be undone
  12. tiny cubes
  13. a shallow dish
  14. can be undone
  15. True
  16. False
  17. turmeric powder
  18. water evaporates
  19. True
  20. a magnet
  21. False
  22. can be undone
  23. sugar crystals form
  24. dissolving salt
  25. safe from small children
  26. cannot be undone
  27. True
  28. we keep it the same
  29. sawdust
  30. a mirror
  31. True
  32. table salt
  33. False
  34. bigger crystals
  35. a spoon
  36. False
  37. True
  38. True
  39. does not dissolve
  40. True

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