Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 792 · 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.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) two clear glasses (d) a clock or timer
2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it floats up (d) it dissolves
4. 4.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
5. 5.True or false: sugar is needed for the dissolving test. (a) False (b) True
6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
7. 7.True or false: sugar stirred well dissolves slower. (a) True (b) False
8. 8.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) a clock or timer (c) two clear glasses (d) sugar
9. 9.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) small pebbles (d) sugar
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of water
11. 11.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
12. 12.True or false: warm water is needed for the dissolving test. (a) True (b) False
13. 13.🥄 Which of these does not dissolve in water? (a) small pebbles (b) sugar (c) baking soda (d) table salt
14. 14.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a balloon (c) two clear glasses (d) a teaspoon
16. 16.🔍 Which is the odd one out? (a) food colour (b) table salt (c) sand (d) glucose powder
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the water temperature (d) the stirring
18. 18.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
19. 19.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
20. 20.True or false: a big sugar cube dissolves faster. (a) True (b) False
21. 21.True or false: table salt does not dissolve in water. (a) True (b) False
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.🔍 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 vanished for ever (d) it sank as sand
24. 24.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a comb (c) a magnet (d) cotton wool
25. 25.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a solution (d) a crystal
26. 26.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
28. 28.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
29. 29.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a balloon (c) cold water (d) a teaspoon
30. 30.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) sawdust (d) sand
31. 31.⚖️ 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
32. 32.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
33. 33.True or false: chalk powder dissolves in water. (a) True (b) False
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) a teaspoon (d) cold water
35. 35.⚖️ 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) the amount of sugar (d) the amount of water
36. 36.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cold water (c) honey (d) a balloon
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a magnet (d) sugar
38. 38.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) cold water (d) honey
39. 39.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same

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