Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 458 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
2. 2.True or false: table salt does not dissolve in water. (a) False (b) True
3. 3.⚖️ 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 amount of sugar (c) the amount of water (d) time to dissolve
4. 4.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it turns blue (d) it settles at the bottom
5. 5.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
6. 6.🥄 Which of these does not dissolve in water? (a) sugar (b) glucose powder (c) baking soda (d) small pebbles
7. 7.⚖️ 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 amount of sugar (c) the water temperature
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
9. 9.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
10. 10.🔍 Which is the odd one out? (a) table salt (b) sugar (c) small pebbles (d) glucose powder
11. 11.True or false: a mirror is not needed for the dissolving test. (a) True (b) False
12. 12.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
13. 13.True or false: honey is needed for the dissolving test. (a) True (b) False
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.True or false: powdered sugar dissolves slower. (a) False (b) True
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🔍 Which is the odd one out? (a) baking soda (b) cooking oil (c) small pebbles (d) sawdust
19. 19.⚖️ 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) True (b) False
20. 20.True or false: sugar left unstirred dissolves slower. (a) False (b) True
21. 21.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) poke it with a finger (d) smell it closely
22. 22.True or false: sawdust does not dissolve in water. (a) False (b) True
23. 23.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a magnet (d) sugar
25. 25.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
28. 28.⚖️ 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
29. 29.True or false: sugar in icy water dissolves slower. (a) True (b) False
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) sugar (d) honey
31. 31.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
32. 32.🔍 Which is the odd one out? (a) sugar (b) glucose powder (c) baking soda (d) chalk powder
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) cotton wool (d) two clear glasses
34. 34.True or false: small pebbles does not dissolve in water. (a) False (b) True
35. 35.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
36. 36.⚖️ 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
37. 37.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🥄 Which of these does not dissolve in water? (a) sand (b) baking soda (c) sugar (d) table salt
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the stirring (c) the amount of water (d) the water temperature
40. 40.⚖️ 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

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