Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 129 · 40 questions

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

1. 1.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
3. 3.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) two clear glasses (d) a teaspoon
4. 4.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) cooking oil (d) sugar
5. 5.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
6. 6.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a clock or timer (c) two clear glasses (d) a magnet
7. 7.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
8. 8.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) sugar (d) food colour
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.True or false: table salt does not dissolve in water. (a) False (b) True
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
12. 12.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
13. 13.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
14. 14.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) two clear glasses (c) warm water (d) cold water
15. 15.True or false: cooking oil dissolves in water. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) food colour (d) sawdust
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the water temperature (c) time to dissolve (d) the kind of sugar
19. 19.True or false: small pebbles dissolves in water. (a) True (b) False
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the kind of sugar (c) time to dissolve (d) the amount of water
22. 22.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) chalk powder (d) table salt
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
25. 25.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) small pebbles (d) glucose powder
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) cold water (d) honey
27. 27.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) all of it dissolves (c) the water turns solid (d) some stays undissolved
28. 28.True or false: baking soda does not dissolve in water. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) food colour (b) table salt (c) glucose powder (d) small pebbles
30. 30.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
31. 31.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
32. 32.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
34. 34.True or false: sugar is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
36. 36.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
38. 38.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) cotton wool (d) a teaspoon
39. 39.True or false: a comb is needed for the dissolving test. (a) True (b) False
40. 40.True or false: sugar in icy water dissolves faster. (a) True (b) False

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