Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 640 · 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.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) keep it in a fridge (c) stir it more (d) add more water
2. 2.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
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 measure it (b) we keep it the same (c) we change it
4. 4.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
6. 6.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
9. 9.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) sugar (c) warm water (d) a teaspoon
11. 11.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) warm water is thicker (d) sugar likes the dark
12. 12.⚖️ 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
13. 13.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
14. 14.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
15. 15.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) cooking oil (d) baking soda
16. 16.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
18. 18.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
19. 19.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) cold water (d) a mirror
21. 21.⚖️ 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
22. 22.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) taste it (d) poke it with a finger
23. 23.⚖️ 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
24. 24.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
25. 25.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
26. 26.⚖️ 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 change it (c) we keep it the same
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) food colour (d) chalk powder
30. 30.True or false: sugar in warm water dissolves faster. (a) True (b) False
31. 31.True or false: honey is needed for the dissolving test. (a) False (b) True
32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) a balloon (d) a magnet
33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) powdered sugar (d) the sugar cube
34. 34.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) baking soda (d) sand
35. 35.True or false: sugar in icy water dissolves slower. (a) True (b) False
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: a balloon is not needed for the dissolving test. (a) True (b) False
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) cotton wool
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) sugar (d) a clock or timer
40. 40.True or false: warm water is needed for the dissolving test. (a) False (b) True

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