Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 592 · 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: sawdust dissolves in water. (a) True (b) False
2. 2.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) time to dissolve (d) the amount of water
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) cold water (c) warm water (d) sugar
7. 7.True or false: sugar is needed for the dissolving test. (a) False (b) True
8. 8.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
9. 9.🔮 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
10. 10.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a rainbow (c) a crystal (d) a magnet
11. 11.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
12. 12.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) taste it (d) smell it closely
13. 13.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) cooking oil (d) sand
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) food colour (d) baking soda
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) the kind of sugar (c) time to dissolve
18. 18.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) honey (d) a magnet
19. 19.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
20. 20.🧺 Which of these is needed for the dissolving test? (a) honey (b) two clear glasses (c) a magnet (d) a balloon
21. 21.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar stirred well (d) sugar in icy water
22. 22.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) sugar likes the dark (d) particles move faster
23. 23.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) baking soda (b) sand (c) table salt (d) food colour
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cotton wool (c) a clock or timer (d) a teaspoon
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) a clock or timer (c) warm water (d) sugar
27. 27.True or false: powdered sugar dissolves faster. (a) True (b) False
28. 28.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
29. 29.True or false: sugar in warm water dissolves slower. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) glucose powder (d) sugar
31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
32. 32.True or false: glucose powder dissolves in water. (a) True (b) False
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a mirror (d) sugar
34. 34.🥄 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) sugar (d) cooking oil
35. 35.True or false: a balloon is needed for the dissolving test. (a) True (b) False
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
37. 37.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
38. 38.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a magnet (d) a clock or timer
39. 39.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
40. 40.True or false: a magnet is needed for the dissolving test. (a) False (b) True

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