Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 871 · 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 is the odd one out? (a) table salt (b) food colour (c) cooking oil (d) baking soda
2. 2.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) sand (d) small pebbles
3. 3.🧂 Which of these dissolves in water? (a) sand (b) sawdust (c) glucose powder (d) chalk powder
4. 4.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) on the edge of a table (c) next to the baby (d) in a busy doorway
5. 5.⚖️ 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) True (b) False
6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is kept the same. (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 “the amount of salt”? (a) we measure it (b) we keep it the same (c) we change it
8. 8.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a spoon (c) a battery cell (d) warm water
9. 9.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) warm water (c) yeast (d) a spoon
10. 10.True or false: sawdust does not dissolve in water. (a) False (b) True
11. 11.True or false: small pebbles dissolves in water. (a) False (b) True
12. 12.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a mirror (c) a piece of string (d) a shallow dish
13. 13.⚖️ 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
14. 14.⚖️ 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) sunny or shady place (c) the same dish (d) the amount of water
15. 15.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) it fizzes (c) crystals grow faster (d) few or no crystals
16. 16.🌊 How is salt made in salt pans by the sea? (a) sea water evaporates (b) fish make it (c) salt rains down (d) sand is ground up
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) turmeric powder (c) a balloon (d) warm water
19. 19.⚖️ 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
20. 20.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) sugar crystals form (b) it turns to butter (c) it turns to oil (d) salt crystals form
21. 21.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a piece of string (c) a balloon (d) warm water
22. 22.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a mirror (c) warm water (d) a shallow dish
23. 23.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
24. 24.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a battery cell (b) salt (c) a spoon (d) warm water
25. 25.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sugar (d) sand
26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a balloon (c) warm water (d) a shallow dish
27. 27.🧈 Which of these is a change that cannot be undone? (a) folding paper (b) cooking an egg (c) freezing water (d) melting ice
28. 28.🔍 Which is the odd one out? (a) table salt (b) chalk powder (c) sawdust (d) small pebbles
29. 29.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is what we measure. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) chalk powder (d) sugar
31. 31.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) salt (c) a magnet (d) a piece of string
32. 32.⚖️ 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 kind of salt (b) days to see crystals (c) the amount of water (d) sunny or shady place
33. 33.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
34. 34.🧂 Which of these does not dissolve in water? (a) food colour (b) sugar (c) baking soda (d) sand
35. 35.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
36. 36.🧺 Do we need a balloon for growing salt crystals? (a) not needed (b) needed
37. 37.True or false: sugar does not dissolve in water. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sawdust (d) food colour
39. 39.True or false: folding paper is a change that cannot be undone. (a) False (b) True
40. 40.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed

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