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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 786 · 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.

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  1. 1.🧺 Which of these is needed for growing salt crystals? (a) a shallow dish (b) a battery cell (c) a magnet (d) a balloon
  2. 2.True or false: chalk powder dissolves in water. (a) True (b) False
  3. 3.True or false: sugar dissolves in water. (a) False (b) True
  4. 4.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  5. 5.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) chalk powder (d) sand
  6. 6.True or false: glucose powder dissolves in water. (a) False (b) True
  7. 7.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
  8. 8.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) sawdust (d) chalk powder
  9. 9.🧺 Which of these is not needed for growing salt crystals? (a) turmeric powder (b) warm water (c) a spoon (d) a shallow dish
  10. 10.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) in a busy doorway (c) safe from small children (d) on the edge of a table
  11. 11.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
  12. 12.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a spoon (c) warm water (d) yeast
  13. 13.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) sawdust (d) chalk powder
  14. 14.⚖️ 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
  15. 15.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) a battery cell (c) salt (d) a shallow dish
  16. 16.🧂 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  17. 17.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) small pebbles (d) table salt
  18. 18.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) folding paper (c) freezing water (d) browning lemon ink
  19. 19.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  20. 20.⚖️ 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 keep it the same (c) we change it
  21. 21.True or false: folding paper is a change that can be undone. (a) True (b) False
  22. 22.🧂 Which of these dissolves in water? (a) sand (b) small pebbles (c) sugar (d) cooking oil
  23. 23.🧈 Which of these is a change that cannot be undone? (a) baking a cake (b) freezing water (c) folding paper (d) melting butter
  24. 24.True or false: melting ice is a change that can be undone. (a) False (b) True
  25. 25.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a magnet (b) a shallow dish (c) salt (d) warm water
  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 kept the same. (a) False (b) True
  27. 27.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
  28. 28.🧂 Which of these dissolves in water? (a) glucose powder (b) sand (c) small pebbles (d) sawdust
  29. 29.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) crystals grow faster (c) it fizzes (d) few or no crystals
  30. 30.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny triangles (b) tiny spheres (c) tiny cubes (d) tiny stars
  31. 31.True or false: salt is needed for growing salt crystals. (a) False (b) True
  32. 32.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to oil (c) it turns to butter (d) sugar crystals form
  33. 33.🧂 Which of these dissolves in water? (a) baking soda (b) small pebbles (c) cooking oil (d) sand
  34. 34.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) a spoon (d) a mirror
  35. 35.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
  36. 36.True or false: cooking oil dissolves in water. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) sugar (b) sand (c) food colour (d) table salt
  38. 38.⚖️ 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) False (b) True
  39. 39.🧂 Which of these does not dissolve in water? (a) chalk powder (b) food colour (c) sugar (d) table salt
  40. 40.True or false: freezing water is a change that cannot be undone. (a) True (b) False

Answer key

  1. a shallow dish
  2. False
  3. True
  4. needed
  5. baking soda
  6. True
  7. a grown-up
  8. glucose powder
  9. turmeric powder
  10. safe from small children
  11. can be undone
  12. yeast
  13. table salt
  14. we keep it the same
  15. a battery cell
  16. dissolves in water
  17. small pebbles
  18. browning lemon ink
  19. does not dissolve
  20. we change it
  21. True
  22. sugar
  23. baking a cake
  24. True
  25. a magnet
  26. True
  27. needed
  28. glucose powder
  29. few or no crystals
  30. tiny cubes
  31. True
  32. sugar crystals form
  33. baking soda
  34. a mirror
  35. not needed
  36. False
  37. sand
  38. True
  39. chalk powder
  40. False

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