Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 306 · 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.⚖️ 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
2. 2.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a magnet (b) a spoon (c) warm water (d) salt
3. 3.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) turmeric powder (c) warm water (d) a battery cell
4. 4.True or false: cooking oil dissolves in water. (a) True (b) False
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.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) no crystals (b) smaller crystals (c) liquid crystals (d) bigger crystals
7. 7.⚖️ 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
8. 8.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny triangles (b) tiny stars (c) tiny spheres (d) tiny cubes
9. 9.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) cooking an egg (c) baking a cake (d) folding paper
10. 10.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
11. 11.True or false: browning lemon ink is a change that can be undone. (a) True (b) False
12. 12.🧂 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) baking soda (d) sawdust
13. 13.🧈 Can this change be undone: cooking an egg? (a) can be undone (b) cannot be undone
14. 14.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) baking soda (d) chalk powder
15. 15.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
16. 16.🧂 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) glucose powder (d) sand
17. 17.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
18. 18.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
19. 19.🧂 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) baking soda (d) sand
20. 20.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) food colour (d) sawdust
21. 21.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) browning lemon ink (c) rusting iron (d) melting ice
22. 22.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) baking a cake (c) dissolving salt (d) browning lemon ink
23. 23.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
24. 24.🔍 Which is the odd one out? (a) table salt (b) cooking oil (c) sawdust (d) chalk powder
25. 25.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to oil (b) it turns to butter (c) salt crystals form (d) sugar crystals form
26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a balloon (c) salt (d) a spoon
27. 27.True or false: baking soda dissolves in water. (a) True (b) False
28. 28.🧂 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.True or false: folding paper is a change that cannot be undone. (a) False (b) True
30. 30.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) a battery cell (d) warm water
31. 31.🔍 Which is the odd one out? (a) baking soda (b) sand (c) food colour (d) table salt
32. 32.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
33. 33.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) baking soda (d) food colour
34. 34.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
35. 35.🧂 Which of these dissolves in water? (a) cooking oil (b) sand (c) sugar (d) sawdust
36. 36.🌊 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
37. 37.⚖️ 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 keep it the same (b) we measure it (c) we change it
38. 38.🧺 Which of these is not needed for growing salt crystals? (a) turmeric powder (b) salt (c) a spoon (d) a shallow dish
39. 39.True or false: sand dissolves in water. (a) True (b) False
40. 40.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) next to the baby (c) on the edge of a table (d) safe from small children

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