Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 957 · 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) a clock or timer (b) two clear glasses (c) a teaspoon (d) cotton wool
2. 2.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a clock or timer (d) honey
4. 4.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) sugar (d) a balloon
5. 5.True or false: cold water is needed for the dissolving test. (a) False (b) True
6. 6.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
7. 7.True or false: small pebbles dissolves in water. (a) False (b) True
8. 8.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
9. 9.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
10. 10.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it became air (d) it spread in the water
11. 11.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
14. 14.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
15. 15.True or false: a big sugar cube dissolves slower. (a) False (b) True
16. 16.⚖️ 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) the amount of water (d) time to dissolve
17. 17.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
18. 18.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
19. 19.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
21. 21.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) food colour (d) sand
22. 22.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) warm water is thicker (d) sugar likes the dark
23. 23.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a magnet (c) a comb (d) honey
24. 24.True or false: sugar in warm water dissolves slower. (a) False (b) True
25. 25.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
26. 26.⚖️ 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
27. 27.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) table salt (d) chalk powder
28. 28.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) sugar (c) warm water (d) a teaspoon
29. 29.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) sand (d) glucose powder
30. 30.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it settles at the bottom (c) it turns blue (d) it floats up
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the amount of sugar (d) the stirring
32. 32.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
34. 34.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
35. 35.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) sugar (d) food colour
38. 38.🥄 Which of these dissolves in water? (a) cooking oil (b) baking soda (c) sand (d) sawdust
39. 39.True or false: a magnet is needed for the dissolving test. (a) True (b) False
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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