Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 954 · 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 of these is needed for growing salt crystals? (a) turmeric powder (b) a shallow dish (c) a magnet (d) a balloon
2. 2.🧈 Can this change be undone: melting butter? (a) can be undone (b) cannot be undone
3. 3.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is kept the same. (a) True (b) False
4. 4.True or false: melting butter is a change that cannot be undone. (a) True (b) False
5. 5.⚖️ 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
6. 6.True or false: freezing water is a change that can be undone. (a) True (b) False
7. 7.True or false: salt is not needed for growing salt crystals. (a) True (b) False
8. 8.⚖️ 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 keep it the same (b) we change it (c) we measure it
9. 9.🧂 Which of these does not dissolve in water? (a) baking soda (b) sand (c) glucose powder (d) table salt
10. 10.🧂 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is what we measure. (a) False (b) True
12. 12.⚖️ 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) True (b) False
13. 13.🧂 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) sawdust (d) table salt
14. 14.🧈 Which of these is a change that cannot be undone? (a) rusting iron (b) freezing water (c) folding paper (d) dissolving salt
15. 15.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is the one thing we change. (a) True (b) False
16. 16.⚖️ 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 measure it (c) we keep it the same
17. 17.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a piece of string (c) a magnet (d) salt
18. 18.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a magnet (c) warm water (d) a balloon
19. 19.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) chalk powder (d) food colour
20. 20.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) salt (c) a magnet (d) a mirror
21. 21.True or false: warm water is not needed for growing salt crystals. (a) False (b) True
22. 22.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
23. 23.True or false: browning lemon ink is a change that cannot be undone. (a) False (b) True
24. 24.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) a battery cell (c) a shallow dish (d) a spoon
25. 25.🧂 Which of these dissolves in water? (a) glucose powder (b) sand (c) small pebbles (d) chalk powder
26. 26.🛟 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
27. 27.🔮 Predict: you cover the dish so no water can escape. What happens? (a) crystals grow faster (b) few or no crystals (c) it turns sweet (d) it fizzes
28. 28.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
29. 29.⚖️ 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
30. 30.🌊 How is salt made in salt pans by the sea? (a) salt rains down (b) sea water evaporates (c) fish make it (d) sand is ground up
31. 31.🧂 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.🧈 Which of these is a change that can be undone? (a) melting butter (b) baking a cake (c) browning lemon ink (d) rusting iron
33. 33.True or false: sand does not dissolve in water. (a) False (b) True
34. 34.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) yeast (d) warm water
36. 36.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
37. 37.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) sugar crystals form (c) salt crystals form (d) it turns to oil
38. 38.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
39. 39.True or false: yeast is needed for growing salt crystals. (a) False (b) True
40. 40.🧂 Which of these dissolves in water? (a) sand (b) cooking oil (c) small pebbles (d) table salt

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