Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 204 · 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? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) the amount of water (d) the kind of sugar
2. 2.True or false: sugar in warm water dissolves faster. (a) True (b) False
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) cold water (d) a clock or timer
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
8. 8.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
9. 9.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) honey (d) warm water
11. 11.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) stir it more (d) keep it in a fridge
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
13. 13.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) cold water (d) a mirror
15. 15.⚖️ 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 kind of sugar
16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar in warm water (d) sugar stirred well
17. 17.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) table salt (d) glucose powder
18. 18.🥄 Which of these dissolves in water? (a) sawdust (b) table salt (c) chalk powder (d) cooking oil
19. 19.True or false: sugar does not dissolve in water. (a) True (b) False
20. 20.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.True or false: a comb is needed for the dissolving test. (a) True (b) False
22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
23. 23.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) warm water (c) cold water (d) two clear glasses
25. 25.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
26. 26.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sawdust (d) glucose powder
27. 27.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.⚖️ 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
29. 29.True or false: warm water is needed for the dissolving test. (a) False (b) True
30. 30.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) baking soda (d) sand
31. 31.True or false: sugar is needed for the dissolving test. (a) True (b) False
32. 32.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
33. 33.True or false: powdered sugar dissolves slower. (a) True (b) False
34. 34.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
35. 35.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster
36. 36.⚖️ 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
37. 37.True or false: glucose powder does not dissolve in water. (a) False (b) True
38. 38.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
39. 39.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
40. 40.True or false: cold water is not needed for the dissolving test. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids