Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 558 · 40 questions

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.

1. 1.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) a battery cell (d) a shallow dish
2. 2.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is what we measure. (a) False (b) True
3. 3.⚖️ 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 keep it the same (b) we change it (c) we measure it
4. 4.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
6. 6.True or false: yeast is not needed for growing salt crystals. (a) True (b) False
7. 7.🧈 Which of these is a change that can be undone? (a) rusting iron (b) baking a cake (c) cooking an egg (d) melting ice
8. 8.🧂 Which of these dissolves in water? (a) table salt (b) chalk powder (c) sawdust (d) sand
9. 9.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a mirror (b) a piece of string (c) salt (d) a shallow dish
11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is kept the same. (a) False (b) True
12. 12.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) turmeric powder (c) salt (d) a spoon
13. 13.⚖️ 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 keep it the same (b) we change it (c) we measure it
14. 14.True or false: sand does not dissolve in water. (a) True (b) False
15. 15.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed
16. 16.🧂 Which of these does not dissolve in water? (a) sugar (b) table salt (c) food colour (d) sand
17. 17.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “days to see crystals”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is what we measure. (a) True (b) False
19. 19.⚖️ 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
20. 20.⚖️ 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) True (b) False
21. 21.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) dissolving salt (c) rusting iron (d) milk turning to curd
22. 22.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) in a busy doorway (c) on the edge of a table (d) safe from small children
23. 23.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) turmeric powder (c) a shallow dish (d) a battery cell
25. 25.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) warm water (c) a magnet (d) a balloon
26. 26.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) sugar crystals form (c) salt crystals form (d) it turns to oil
27. 27.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a spoon (c) warm water (d) a magnet
28. 28.⚖️ 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
29. 29.True or false: milk turning to curd is a change that cannot be undone. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) sugar (d) sawdust
31. 31.True or false: a piece of string is not needed for growing salt crystals. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) food colour (b) sugar (c) table salt (d) chalk powder
33. 33.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) a mirror (c) yeast (d) a spoon
34. 34.True or false: a spoon is needed for growing salt crystals. (a) False (b) True
35. 35.True or false: yeast is needed for growing salt crystals. (a) True (b) False
36. 36.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) a magnet (c) a piece of string (d) a mirror
37. 37.🧈 Can this change be undone: dissolving salt? (a) cannot be undone (b) can be undone
38. 38.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
39. 39.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) the amount of salt (c) days to see crystals
40. 40.True or false: a shallow dish is needed for growing salt crystals. (a) False (b) True

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