Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 794 · 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 what we measure? (a) the water temperature (b) the stirring (c) time to dissolve (d) the amount of water
2. 2.⚖️ 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
3. 3.True or false: sand dissolves in water. (a) True (b) False
4. 4.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
5. 5.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
6. 6.🔮 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) the water turns solid (c) some stays undissolved (d) all of it dissolves
7. 7.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) sawdust (d) glucose powder
8. 8.True or false: sugar in warm water dissolves slower. (a) False (b) True
9. 9.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
10. 10.🔍 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
11. 11.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a clock or timer (c) cotton wool (d) a balloon
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) a teaspoon (c) two clear glasses (d) warm water
13. 13.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.True or false: sugar in warm water dissolves faster. (a) False (b) True
16. 16.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar left unstirred
17. 17.True or false: powdered sugar dissolves slower. (a) False (b) True
18. 18.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) two clear glasses (c) cotton wool (d) a magnet
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) sugar (d) a balloon
20. 20.⚖️ 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
21. 21.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
22. 22.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
23. 23.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a comb (d) a teaspoon
24. 24.⚖️ 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 amount of water (c) the amount of sugar (d) the water temperature
25. 25.True or false: warm water is not needed for the dissolving test. (a) True (b) False
26. 26.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) two clear glasses (d) a magnet
28. 28.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
29. 29.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
30. 30.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🔮 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
32. 32.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) honey (d) sugar
36. 36.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
37. 37.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
38. 38.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) two clear glasses (c) a magnet (d) a clock or timer

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