Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 788 · 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: a shallow dish is not needed for growing salt crystals. (a) False (b) True
2. 2.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) rusting iron (c) melting ice (d) cooking an egg
3. 3.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to oil (c) it turns to butter (d) sugar crystals form
4. 4.⚖️ 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 measure it (b) we change it (c) we keep it the same
5. 5.True or false: small pebbles does not dissolve in water. (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 amount of salt is kept the same. (a) True (b) False
7. 7.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a piece of string (c) turmeric powder (d) salt
8. 8.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a spoon (c) salt (d) a balloon
9. 9.True or false: cooking an egg is a change that cannot be undone. (a) True (b) False
10. 10.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) no crystals (b) smaller crystals (c) bigger crystals (d) liquid crystals
11. 11.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) salt (c) a shallow dish (d) a magnet
12. 12.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny triangles (c) tiny spheres (d) tiny cubes
13. 13.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) salt (c) a magnet (d) warm water
14. 14.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
15. 15.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) sand (d) small pebbles
16. 16.⚖️ 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) True (b) False
17. 17.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
18. 18.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) cooking oil (d) sand
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 the one thing we change. (a) True (b) False
20. 20.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
21. 21.True or false: food colour does not dissolve in water. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) baking soda (d) glucose powder
23. 23.True or false: turmeric powder is needed for growing salt crystals. (a) True (b) False
24. 24.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) salt (c) a battery cell (d) a piece of string
25. 25.🔮 Predict: you cover the dish so no water can escape. What happens? (a) few or no crystals (b) it fizzes (c) it turns sweet (d) crystals grow faster
26. 26.⚖️ 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
27. 27.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.True or false: a balloon is needed for growing salt crystals. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) table salt (d) sugar
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
32. 32.True or false: baking soda dissolves in water. (a) True (b) False
33. 33.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed
34. 34.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) salt (c) yeast (d) a piece of string
36. 36.🧂 Which of these dissolves in water? (a) sand (b) glucose powder (c) small pebbles (d) chalk powder
37. 37.🧂 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) sand (d) food colour
38. 38.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a shallow dish (c) salt (d) a mirror
39. 39.⚖️ 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
40. 40.🧂 Why do crystals appear as the dish dries? (a) salt eats water (b) salt grows roots (c) water evaporates (d) the dish melts

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