Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 540 · 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: sand does not dissolve in water. (a) False (b) True
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) sugar (d) a comb
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a balloon (d) sugar
4. 4.🔮 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) some stays undissolved (d) the water turns solid
5. 5.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) warm water (c) two clear glasses (d) honey
6. 6.True or false: table salt dissolves in water. (a) False (b) True
7. 7.True or false: warm water is not needed for the dissolving test. (a) True (b) False
8. 8.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
9. 9.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) cooking oil (d) sawdust
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) sugar (c) a clock or timer (d) warm water
12. 12.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
13. 13.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
14. 14.True or false: sugar is needed for the dissolving test. (a) False (b) True
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a clock or timer (c) a teaspoon (d) two clear glasses
16. 16.True or false: honey is not needed for the dissolving test. (a) True (b) False
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sawdust (d) sugar
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) warm water (d) two clear glasses
20. 20.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) the water temperature (c) time to dissolve
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
23. 23.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) baking soda (d) table salt
24. 24.True or false: sugar dissolves in water. (a) True (b) False
25. 25.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it spread in the water (d) it sank as sand
26. 26.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) a big sugar cube
27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
28. 28.⚖️ 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 water temperature
29. 29.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.True or false: glucose powder does not dissolve in water. (a) True (b) False
32. 32.True or false: sugar in icy water dissolves slower. (a) False (b) True
33. 33.🔮 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
34. 34.🥄 Which of these dissolves in water? (a) glucose powder (b) small pebbles (c) chalk powder (d) cooking oil
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) a teaspoon (d) cold water
39. 39.True or false: warm water is needed for the dissolving test. (a) True (b) False
40. 40.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve

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