Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 352 · 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? True or false: the amount of water is kept the same. (a) True (b) False
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
3. 3.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) all of it dissolves (c) the water turns solid (d) some stays undissolved
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
5. 5.True or false: sugar is needed for the dissolving test. (a) False (b) True
6. 6.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar in icy water
7. 7.🛟 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
8. 8.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
9. 9.True or false: a clock or timer is not 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) cold water (b) two clear glasses (c) honey (d) a clock or timer
11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
12. 12.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
13. 13.True or false: a comb is not needed for the dissolving test. (a) False (b) True
14. 14.True or false: powdered sugar dissolves slower. (a) True (b) False
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
16. 16.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the water temperature (c) the amount of water (d) the kind of sugar
19. 19.🧺 Which of these is needed for the dissolving test? (a) a comb (b) two clear glasses (c) a magnet (d) a mirror
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) two clear glasses (d) cotton wool
21. 21.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) cooking oil (d) sugar
22. 22.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
23. 23.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) small pebbles (d) sugar
24. 24.True or false: sugar in icy water dissolves faster. (a) False (b) True
25. 25.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) sand (d) chalk powder
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
28. 28.⚖️ 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
29. 29.🔍 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
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
31. 31.🥄 Which of these does not dissolve in water? (a) table salt (b) sawdust (c) food colour (d) baking soda
32. 32.True or false: small pebbles does not dissolve in water. (a) True (b) False
33. 33.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a magnet (c) a clock or timer (d) a teaspoon
34. 34.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) warm water (d) a balloon
35. 35.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.True or false: sugar left unstirred dissolves slower. (a) False (b) True
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False

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