← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 504 · 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.⚖️ 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 same dish (b) days to see crystals (c) sunny or shady place (d) the kind of salt
  2. 2.🧈 Can this change be undone: melting butter? (a) can be undone (b) cannot be undone
  3. 3.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
  4. 4.🧂 Why do crystals appear as the dish dries? (a) salt eats water (b) water evaporates (c) salt grows roots (d) the dish melts
  5. 5.⚖️ 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) True (b) False
  6. 6.True or false: melting ice is a change that cannot be undone. (a) True (b) False
  7. 7.🛟 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
  8. 8.🧈 Can this change be undone: folding paper? (a) can be undone (b) cannot be undone
  9. 9.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) sand (d) table salt
  10. 10.True or false: melting butter is a change that cannot be undone. (a) False (b) True
  11. 11.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) melting ice (c) cooking an egg (d) baking a cake
  12. 12.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  13. 13.🧂 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) cooking oil (d) table salt
  14. 14.True or false: cooking oil does not dissolve in water. (a) True (b) False
  15. 15.⚖️ 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) False (b) True
  16. 16.True or false: food colour dissolves in water. (a) False (b) True
  17. 17.🧈 Can this change be undone: dissolving salt? (a) cannot be undone (b) can be undone
  18. 18.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  19. 19.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it fizzes (b) it turns sweet (c) few or no crystals (d) crystals grow faster
  20. 20.True or false: melting butter is a change that can be undone. (a) False (b) True
  21. 21.🧂 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  22. 22.🧈 Can this change be undone: baking a cake? (a) cannot be undone (b) can be undone
  23. 23.🧈 Can this change be undone: milk turning to curd? (a) cannot be undone (b) can be undone
  24. 24.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) salt (c) a battery cell (d) a spoon
  26. 26.⚖️ 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) False (b) True
  27. 27.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
  28. 28.🔮 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
  29. 29.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  30. 30.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a magnet (c) a shallow dish (d) warm water
  31. 31.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) glucose powder (d) food colour
  32. 32.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
  33. 33.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
  34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is the one thing we change. (a) True (b) False
  35. 35.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a balloon (c) a spoon (d) warm water
  36. 36.True or false: baking a cake is a change that cannot be undone. (a) True (b) False
  37. 37.True or false: sand dissolves in water. (a) False (b) True
  38. 38.True or false: a battery cell is needed for growing salt crystals. (a) True (b) False
  39. 39.True or false: a balloon is needed for growing salt crystals. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) baking soda (d) chalk powder

Answer key

  1. sunny or shady place
  2. can be undone
  3. needed
  4. water evaporates
  5. True
  6. False
  7. safe from small children
  8. can be undone
  9. sand
  10. False
  11. melting ice
  12. not needed
  13. cooking oil
  14. True
  15. True
  16. True
  17. can be undone
  18. a grown-up
  19. few or no crystals
  20. True
  21. dissolves in water
  22. cannot be undone
  23. cannot be undone
  24. dissolves in water
  25. a battery cell
  26. False
  27. needed
  28. sugar crystals form
  29. does not dissolve
  30. a magnet
  31. sawdust
  32. needed
  33. not needed
  34. True
  35. a balloon
  36. True
  37. False
  38. False
  39. False
  40. baking soda

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