Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 350 · 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.True or false: yeast is needed for growing salt crystals. (a) False (b) True
2. 2.🧈 Which of these is a change that can be undone? (a) melting ice (b) baking a cake (c) milk turning to curd (d) browning lemon ink
3. 3.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) few or no crystals (c) it fizzes (d) crystals grow faster
4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a balloon (b) a shallow dish (c) salt (d) warm water
5. 5.🛟 Where should you keep the crystal dish while it dries? (a) on the edge of a table (b) safe from small children (c) in a busy doorway (d) next to the baby
6. 6.⚖️ 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
7. 7.True or false: browning lemon ink is a change that can be undone. (a) False (b) True
8. 8.True or false: chalk powder dissolves in water. (a) False (b) True
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) table salt (b) sand (c) glucose powder (d) sugar
11. 11.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) a spoon (c) a battery cell (d) yeast
12. 12.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
13. 13.True or false: freezing water is a change that cannot be undone. (a) False (b) True
14. 14.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to oil (b) salt crystals form (c) sugar crystals form (d) it turns to butter
15. 15.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) no crystals (c) smaller crystals (d) bigger crystals
16. 16.⚖️ 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
17. 17.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone
18. 18.⚖️ 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
19. 19.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) sugar (d) food colour
21. 21.🌊 How is salt made in salt pans by the sea? (a) sea water evaporates (b) sand is ground up (c) salt rains down (d) fish make it
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) turmeric powder (c) warm water (d) a piece of string
24. 24.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
25. 25.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) a piece of string (d) yeast
27. 27.🧂 Which of these dissolves in water? (a) sand (b) cooking oil (c) sawdust (d) sugar
28. 28.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a spoon (c) a magnet (d) a shallow dish
29. 29.True or false: a magnet is not needed for growing salt crystals. (a) True (b) False
30. 30.⚖️ 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) the amount of salt (c) sunny or shady place (d) the amount of water
31. 31.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) table salt (d) chalk powder
32. 32.🧈 Which of these is a change that can be undone? (a) dissolving salt (b) cooking an egg (c) rusting iron (d) browning lemon ink
33. 33.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
34. 34.⚖️ 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 kind of salt
35. 35.🧂 Which of these does not dissolve in water? (a) food colour (b) small pebbles (c) baking soda (d) glucose powder
36. 36.🧈 Can this change be undone: milk turning to curd? (a) cannot be undone (b) can be undone
37. 37.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🧈 Can this change be undone: dissolving salt? (a) can be undone (b) cannot be undone
39. 39.True or false: a balloon is needed for growing salt crystals. (a) True (b) False
40. 40.🛟 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

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids