Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 227 · 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) warm water (b) sugar (c) a teaspoon (d) a magnet
2. 2.True or false: sugar in icy water dissolves faster. (a) False (b) True
3. 3.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
4. 4.True or false: honey is not needed for the dissolving test. (a) False (b) True
5. 5.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
7. 7.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) sawdust (d) small pebbles
8. 8.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
9. 9.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
10. 10.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
12. 12.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) chalk powder (d) food colour
13. 13.⚖️ 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) False (b) True
14. 14.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it settles at the bottom (d) it floats up
15. 15.True or false: sugar in icy water dissolves slower. (a) True (b) False
16. 16.⚖️ 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
17. 17.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
18. 18.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) warm water (d) a balloon
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) honey (c) sugar (d) cold water
23. 23.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a rainbow (d) a crystal
24. 24.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) chalk powder (d) small pebbles
25. 25.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
26. 26.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
27. 27.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
29. 29.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) sugar (d) food colour
30. 30.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) table salt (d) cooking oil
31. 31.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
32. 32.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a clock or timer (d) honey
33. 33.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) particles move faster (d) warm water is thicker
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.🥄 Which of these does not dissolve in water? (a) table salt (b) chalk powder (c) baking soda (d) sugar
37. 37.⚖️ 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 sugar (c) the stirring (d) the kind of sugar
38. 38.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a comb (d) cotton wool
39. 39.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
40. 40.⚖️ 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) time to dissolve (c) the stirring

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