Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 683 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.True or false: sugar stirred well dissolves faster. (a) True (b) False
3. 3.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) a big sugar cube
4. 4.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) honey (d) a teaspoon
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
6. 6.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
7. 7.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
9. 9.True or false: a magnet is needed for the dissolving test. (a) True (b) False
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a balloon (d) two clear glasses
11. 11.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sand (d) glucose powder
12. 12.True or false: sugar is not needed for the dissolving test. (a) False (b) True
13. 13.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) sand (d) baking soda
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
15. 15.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) cooking oil (d) chalk powder
16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
17. 17.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) let the water evaporate (d) add more water
18. 18.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
19. 19.True or false: warm water is needed for the dissolving test. (a) True (b) False
20. 20.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) a comb (d) a clock or timer
21. 21.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) a magnet (d) two clear glasses
22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the kind of sugar (c) the stirring (d) time to dissolve
24. 24.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) glucose powder (d) sand
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
26. 26.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
27. 27.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
28. 28.⚖️ 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 sugar
29. 29.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) cotton wool (d) cold water
30. 30.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
31. 31.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) table salt (d) small pebbles
33. 33.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sawdust (d) sugar
34. 34.True or false: glucose powder does not dissolve in water. (a) True (b) False
35. 35.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) sugar (d) a balloon
36. 36.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
37. 37.True or false: powdered sugar dissolves faster. (a) True (b) False
38. 38.🥄 Which of these does not dissolve in water? (a) chalk powder (b) food colour (c) glucose powder (d) baking soda
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a mirror (c) a teaspoon (d) two clear glasses
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False

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