Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 793 · 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.🧈 Which of these is a change that can be undone? (a) freezing water (b) browning lemon ink (c) baking a cake (d) cooking an egg
2. 2.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a mirror (b) a piece of string (c) warm water (d) salt
3. 3.True or false: salt is needed for growing salt crystals. (a) False (b) True
4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) salt (c) a piece of string (d) turmeric powder
5. 5.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a magnet (c) a spoon (d) turmeric powder
6. 6.🧂 Which of these dissolves in water? (a) chalk powder (b) sawdust (c) sugar (d) cooking oil
7. 7.True or false: a battery cell is needed for growing salt crystals. (a) True (b) False
8. 8.True or false: warm water is needed for growing salt crystals. (a) False (b) True
9. 9.True or false: dissolving salt is a change that can be undone. (a) False (b) True
10. 10.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a battery cell (c) warm water (d) a balloon
11. 11.🧺 Do we need warm water for growing salt crystals? (a) needed (b) not needed
12. 12.🧂 Why do crystals appear as the dish dries? (a) salt grows roots (b) salt eats water (c) the dish melts (d) water evaporates
13. 13.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
14. 14.⚖️ 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
15. 15.True or false: turmeric powder is needed for growing salt crystals. (a) True (b) False
16. 16.True or false: a shallow dish is not needed for growing salt crystals. (a) True (b) False
17. 17.⚖️ 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 change it (b) we measure 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 kept the same. (a) True (b) False
19. 19.⚖️ 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) True (b) False
20. 20.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) warm water (c) turmeric powder (d) salt
21. 21.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
22. 22.True or false: a magnet is not needed for growing salt crystals. (a) False (b) True
23. 23.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a shallow dish (c) salt (d) a balloon
24. 24.True or false: a piece of string is needed for growing salt crystals. (a) True (b) False
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) sugar crystals form (b) salt crystals form (c) it turns to oil (d) it turns to butter
27. 27.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a battery cell (c) salt (d) a shallow dish
28. 28.True or false: baking a cake is a change that can be undone. (a) False (b) True
29. 29.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
30. 30.True or false: turmeric powder is not needed for growing salt crystals. (a) False (b) True
31. 31.⚖️ 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
32. 32.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) liquid crystals (c) bigger crystals (d) no crystals
33. 33.🧺 Which of these is needed for growing salt crystals? (a) a piece of string (b) turmeric powder (c) a mirror (d) a battery cell
34. 34.True or false: chalk powder dissolves in water. (a) True (b) False
35. 35.True or false: sawdust does not dissolve in water. (a) True (b) False
36. 36.🧈 Which of these is a change that can be undone? (a) rusting iron (b) dissolving salt (c) milk turning to curd (d) browning lemon ink
37. 37.⚖️ 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) False (b) True
38. 38.⚖️ 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
39. 39.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
40. 40.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the same dish”? (a) we change it (b) we keep it the same (c) we measure it

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