Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 366 · 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 dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
2. 2.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
3. 3.True or false: baking soda dissolves in water. (a) False (b) True
4. 4.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) sand (d) sawdust
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it turns blue (c) it floats up (d) it dissolves
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a teaspoon (c) two clear glasses (d) sugar
8. 8.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
9. 9.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) a magnet (d) a teaspoon
11. 11.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
12. 12.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
13. 13.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
14. 14.True or false: chalk powder dissolves in water. (a) True (b) False
15. 15.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) cold water (d) two clear glasses
16. 16.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
17. 17.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) a balloon (d) a magnet
18. 18.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) small pebbles (d) table salt
19. 19.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) sand (d) glucose powder
20. 20.True or false: sugar in warm water dissolves faster. (a) True (b) False
21. 21.True or false: sugar in icy water dissolves slower. (a) True (b) False
22. 22.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
23. 23.True or false: sand does not dissolve in water. (a) True (b) False
24. 24.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a balloon (c) a teaspoon (d) warm water
25. 25.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) a mirror (d) a teaspoon
26. 26.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) some stays undissolved (d) the sugar turns to salt
27. 27.True or false: a mirror is needed for the dissolving test. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) sawdust (d) cooking oil
29. 29.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
30. 30.True or false: glucose powder dissolves in water. (a) False (b) True
31. 31.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
32. 32.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) cold water (d) honey
33. 33.⚖️ 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
34. 34.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
36. 36.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
37. 37.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) True (b) False
39. 39.⚖️ 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
40. 40.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar in warm water (d) sugar left unstirred

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