← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 617 · 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: freezing water is a change that cannot be undone. (a) False (b) True
  2. 2.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) it turns to oil (c) sugar crystals form (d) salt crystals form
  3. 3.⚖️ 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 kind of salt (b) the amount of salt (c) sunny or shady place (d) the amount of water
  4. 4.🧺 Which of these is needed for growing salt crystals? (a) warm water (b) a mirror (c) a battery cell (d) yeast
  5. 5.🧈 Which of these is a change that can be undone? (a) folding paper (b) cooking an egg (c) browning lemon ink (d) baking a cake
  6. 6.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
  7. 7.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
  8. 8.🧈 Can this change be undone: melting butter? (a) cannot be undone (b) can be undone
  9. 9.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
  10. 10.⚖️ 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 measure it (b) we change it (c) we keep it the same
  11. 11.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) melting butter (c) cooking an egg (d) freezing water
  12. 12.True or false: melting butter is a change that can be undone. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
  15. 15.🧂 Which of these dissolves in water? (a) sawdust (b) food colour (c) cooking oil (d) chalk powder
  16. 16.True or false: sugar dissolves in water. (a) False (b) True
  17. 17.🧂 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) food colour (d) chalk powder
  18. 18.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a shallow dish (c) yeast (d) salt
  19. 19.True or false: freezing water is a change that can be undone. (a) False (b) True
  20. 20.🧂 Which of these does not dissolve in water? (a) table salt (b) small pebbles (c) glucose powder (d) sugar
  21. 21.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) warm water (c) a balloon (d) a piece of string
  22. 22.⚖️ 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
  23. 23.🧂 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sugar (d) sawdust
  24. 24.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) no crystals (c) liquid crystals (d) bigger crystals
  25. 25.True or false: folding paper is a change that cannot be undone. (a) False (b) True
  26. 26.True or false: a battery cell is needed for growing salt crystals. (a) True (b) False
  27. 27.True or false: melting ice is a change that can be undone. (a) False (b) True
  28. 28.True or false: sugar does not dissolve in water. (a) True (b) False
  29. 29.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) a piece of string (c) a battery cell (d) turmeric powder
  30. 30.🧂 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  31. 31.⚖️ 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
  32. 32.True or false: a piece of string is not needed for growing salt crystals. (a) False (b) True
  33. 33.🧂 Which of these does not dissolve in water? (a) table salt (b) sugar (c) food colour (d) sawdust
  34. 34.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) rusting iron (c) freezing water (d) baking a cake
  35. 35.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny triangles (c) tiny spheres (d) tiny cubes
  36. 36.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “sunny or shady place”? (a) we measure it (b) we change it (c) we keep it the same
  37. 37.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  38. 38.True or false: cooking oil dissolves in water. (a) True (b) False
  39. 39.🧈 Can this change be undone: browning lemon ink? (a) cannot be undone (b) can be undone
  40. 40.True or false: a shallow dish is not needed for growing salt crystals. (a) True (b) False

Answer key

  1. False
  2. sugar crystals form
  3. sunny or shady place
  4. warm water
  5. folding paper
  6. a grown-up
  7. needed
  8. can be undone
  9. needed
  10. we keep it the same
  11. cooking an egg
  12. True
  13. True
  14. cannot be undone
  15. food colour
  16. True
  17. chalk powder
  18. yeast
  19. True
  20. small pebbles
  21. a balloon
  22. False
  23. sugar
  24. bigger crystals
  25. False
  26. False
  27. True
  28. False
  29. a piece of string
  30. dissolves in water
  31. we keep it the same
  32. False
  33. sawdust
  34. freezing water
  35. tiny cubes
  36. we change it
  37. not needed
  38. False
  39. cannot be undone
  40. False

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