Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 982 · 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.⚖️ 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
2. 2.🧂 Which of these dissolves in water? (a) sand (b) glucose powder (c) sawdust (d) cooking oil
3. 3.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
4. 4.⚖️ 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
5. 5.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) the amount of water (b) the kind of salt (c) days to see crystals (d) sunny or shady place
6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) the same dish (b) days to see crystals (c) sunny or shady place
7. 7.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) food colour (d) cooking oil
8. 8.⚖️ 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) sunny or shady place (b) the kind of salt (c) days to see crystals (d) the amount of water
9. 9.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) salt crystals form (c) it turns to oil (d) sugar crystals form
10. 10.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a mirror (c) salt (d) a magnet
11. 11.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a mirror (b) salt (c) a shallow dish (d) a spoon
12. 12.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) food colour (d) sawdust
13. 13.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) cooking an egg (c) melting ice (d) dissolving salt
14. 14.True or false: melting ice is a change that can be undone. (a) False (b) True
15. 15.True or false: table salt does not dissolve in water. (a) True (b) False
16. 16.📘 What do we call a solution that cannot dissolve any more salt? (a) empty (b) saturated (c) frozen (d) magnetic
17. 17.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) next to the baby (c) on the edge of a table (d) in a busy doorway
18. 18.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a spoon (c) warm water (d) a balloon
19. 19.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is what we measure. (a) True (b) False
20. 20.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
21. 21.🧈 Can this change be undone: milk turning to curd? (a) can be undone (b) cannot be undone
22. 22.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a shallow dish (c) a magnet (d) warm water
23. 23.🧈 Can this change be undone: freezing water? (a) can be undone (b) cannot be undone
24. 24.True or false: dissolving salt is a change that cannot be undone. (a) True (b) False
25. 25.🧂 Which of these does not dissolve in water? (a) table salt (b) sugar (c) baking soda (d) small pebbles
26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a balloon (c) warm water (d) salt
27. 27.🧺 Do we need a mirror for growing salt crystals? (a) not needed (b) needed
28. 28.🧂 Which of these dissolves in water? (a) table salt (b) sawdust (c) sand (d) chalk powder
29. 29.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
30. 30.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.True or false: freezing water is a change that can be undone. (a) False (b) True
32. 32.True or false: warm water is needed for growing salt crystals. (a) False (b) True
33. 33.🧺 Do we need a spoon for growing salt crystals? (a) needed (b) not needed
34. 34.True or false: melting butter is a change that cannot be undone. (a) False (b) True
35. 35.⚖️ 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
36. 36.True or false: glucose powder does not dissolve in water. (a) False (b) True
37. 37.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a shallow dish (c) turmeric powder (d) a piece of string
38. 38.🧂 Which of these does not dissolve in water? (a) sand (b) glucose powder (c) table salt (d) sugar
39. 39.⚖️ 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 measure it (c) we change it
40. 40.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) days to see crystals (b) sunny or shady place (c) the amount of salt

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