Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 299 · 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 does not dissolve in water? (a) sand (b) sugar (c) baking soda (d) food colour
2. 2.🛟 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
3. 3.⚖️ 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) True (b) False
4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it sank as sand (d) it spread in the water
5. 5.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
6. 6.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) small pebbles (d) table salt
7. 7.⚖️ 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) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) sugar (c) warm water (d) a comb
10. 10.True or false: warm water is needed for the dissolving test. (a) True (b) False
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) glucose powder (d) small pebbles
13. 13.⚖️ 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
14. 14.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar in icy water (d) sugar left unstirred
15. 15.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) small pebbles (d) chalk powder
16. 16.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) honey (d) two clear glasses
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a teaspoon (d) a magnet
18. 18.True or false: a big sugar cube dissolves slower. (a) True (b) False
19. 19.True or false: cold water is needed for the dissolving test. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the kind of sugar (c) the amount of sugar (d) the water temperature
21. 21.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
22. 22.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) a balloon (d) cold water
24. 24.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) a comb (d) cold water
25. 25.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a teaspoon (d) a balloon
26. 26.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) not at all (d) the same
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a clock or timer (c) warm water (d) sugar
28. 28.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it turns blue (c) it floats up (d) it settles at the bottom
29. 29.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
30. 30.True or false: sugar does not dissolve in water. (a) True (b) False
31. 31.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
32. 32.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
34. 34.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
35. 35.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) sugar (d) a comb
37. 37.⚖️ 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 measure it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sugar (d) sand
39. 39.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.True or false: a balloon is needed for the dissolving test. (a) True (b) False

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