Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 837 · 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) a balloon (b) a shallow dish (c) yeast (d) a magnet
2. 2.⚖️ 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) False (b) True
3. 3.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) cooking an egg (c) milk turning to curd (d) freezing water
4. 4.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) sand is ground up (c) salt rains down (d) sea water evaporates
5. 5.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) the amount of water (c) days to see crystals
7. 7.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) baking a cake (c) cooking an egg (d) folding paper
8. 8.⚖️ 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) True (b) False
9. 9.🧂 Why do crystals appear as the dish dries? (a) salt grows roots (b) the dish melts (c) salt eats water (d) water evaporates
10. 10.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for growing salt crystals? (a) a balloon (b) salt (c) warm water (d) a spoon
12. 12.True or false: folding paper is a change that can be undone. (a) True (b) False
13. 13.True or false: sand dissolves in water. (a) True (b) False
14. 14.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) salt (c) a balloon (d) yeast
15. 15.True or false: folding paper is a change that cannot be undone. (a) False (b) True
16. 16.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) sugar crystals form (c) it turns to oil (d) salt crystals form
17. 17.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a spoon (c) turmeric powder (d) warm water
18. 18.🧺 Which of these is not needed for growing salt crystals? (a) a battery cell (b) warm water (c) a shallow dish (d) salt
19. 19.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a battery cell (c) a spoon (d) a piece of string
20. 20.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) frozen (d) saturated
21. 21.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed
22. 22.True or false: a piece of string is not needed for growing salt crystals. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) small pebbles (d) chalk powder
24. 24.⚖️ 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
25. 25.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
26. 26.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
27. 27.🧈 Can this change be undone: cooking an egg? (a) can be undone (b) cannot be undone
28. 28.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
29. 29.⚖️ 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
30. 30.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
31. 31.True or false: a battery cell is not needed for growing salt crystals. (a) False (b) True
32. 32.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
33. 33.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone
34. 34.🧺 Which of these is needed for growing salt crystals? (a) a piece of string (b) a balloon (c) a battery cell (d) yeast
35. 35.🧺 Do we need yeast for growing salt crystals? (a) needed (b) not needed
36. 36.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
37. 37.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a piece of string (c) a mirror (d) a shallow dish
39. 39.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny triangles (c) tiny spheres (d) tiny stars
40. 40.🧂 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) sugar (d) chalk powder

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