Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 269 · 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.True or false: table salt does not dissolve in water. (a) True (b) False
2. 2.True or false: sugar is not needed for the dissolving test. (a) False (b) True
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the amount of water (c) time to dissolve (d) the water temperature
6. 6.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
7. 7.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
8. 8.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) small pebbles (d) sugar
9. 9.True or false: a comb is needed for the dissolving test. (a) True (b) False
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) sawdust (b) glucose powder (c) cooking oil (d) small pebbles
13. 13.True or false: sugar in icy water dissolves slower. (a) False (b) True
14. 14.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
15. 15.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
16. 16.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
17. 17.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) small pebbles (d) sawdust
18. 18.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) a teaspoon (d) sugar
19. 19.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
20. 20.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
21. 21.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
22. 22.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
23. 23.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
24. 24.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
25. 25.True or false: sugar left unstirred dissolves faster. (a) True (b) False
26. 26.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
29. 29.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
30. 30.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a teaspoon (d) a comb
32. 32.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
33. 33.True or false: chalk powder dissolves in water. (a) False (b) True
34. 34.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar left unstirred (d) sugar in warm water
35. 35.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the water temperature (c) the amount of water (d) the kind of sugar
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) sugar (c) warm water (d) cold water
40. 40.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) small pebbles (d) glucose powder

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