Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 639 · 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 spoon (b) a piece of string (c) salt (d) turmeric powder
2. 2.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) yeast (b) a spoon (c) a shallow dish (d) warm water
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 same dish (b) the kind of salt (c) sunny or shady place (d) the amount of salt
4. 4.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) salt rains down (c) sand is ground up (d) sea water evaporates
5. 5.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) melting butter (c) cooking an egg (d) folding paper
6. 6.True or false: yeast is needed for growing salt crystals. (a) False (b) True
7. 7.⚖️ 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 change it (b) we keep it the same (c) we measure it
8. 8.🧈 Can this change be undone: dissolving salt? (a) can be undone (b) cannot be undone
9. 9.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
10. 10.True or false: melting ice is a change that can be undone. (a) True (b) False
11. 11.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
12. 12.🛟 Where should you keep the crystal dish while it dries? (a) on the edge of a table (b) in a busy doorway (c) next to the baby (d) safe from small children
13. 13.True or false: salt is needed for growing salt crystals. (a) True (b) False
14. 14.🧺 Do we need a magnet for growing salt crystals? (a) not needed (b) needed
15. 15.True or false: turmeric powder is not needed for growing salt crystals. (a) False (b) True
16. 16.🧺 Which of these is not needed for growing salt crystals? (a) yeast (b) salt (c) a piece of string (d) warm water
17. 17.⚖️ 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
18. 18.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) frozen (d) saturated
19. 19.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) baking soda (d) sugar
20. 20.🧂 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) sand (d) sawdust
22. 22.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a battery cell (c) turmeric powder (d) warm water
23. 23.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a spoon (c) warm water (d) a mirror
24. 24.True or false: dissolving salt is a change that can be undone. (a) True (b) False
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) glucose powder (d) food colour
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a magnet (b) a shallow dish (c) warm water (d) a piece of string
30. 30.True or false: dissolving salt is a change that cannot be undone. (a) False (b) True
31. 31.🧈 Which of these is a change that cannot be undone? (a) rusting iron (b) freezing water (c) melting ice (d) folding paper
32. 32.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) days to see crystals (b) the amount of water (c) the amount of salt (d) sunny or shady place
33. 33.🧈 Can this change be undone: baking a cake? (a) cannot be undone (b) can be undone
34. 34.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a piece of string (c) a battery cell (d) turmeric powder
35. 35.🧂 Which of these dissolves in water? (a) sawdust (b) sugar (c) chalk powder (d) sand
36. 36.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) glucose powder (d) small pebbles
37. 37.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.True or false: rusting iron is a change that can be undone. (a) False (b) True
40. 40.⚖️ 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 keep it the same (b) we change it (c) we measure it

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