Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 922 · 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.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
2. 2.🔮 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
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
6. 6.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
8. 8.True or false: glucose powder does not dissolve in water. (a) False (b) True
9. 9.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
10. 10.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
11. 11.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
12. 12.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar stirred well (d) a big sugar cube
13. 13.True or false: a big sugar cube dissolves faster. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) sand (d) sugar
15. 15.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a clock or timer (d) a magnet
16. 16.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) sand (d) small pebbles
17. 17.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) cooking oil (d) food colour
18. 18.True or false: warm water is needed for the dissolving test. (a) False (b) True
19. 19.🛟 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
20. 20.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
22. 22.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
23. 23.True or false: sawdust dissolves in water. (a) True (b) False
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a teaspoon (d) a balloon
25. 25.⚖️ 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) time to dissolve (d) the water temperature
26. 26.🥄 Which of these does not dissolve in water? (a) sand (b) baking soda (c) glucose powder (d) food colour
27. 27.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) small pebbles (d) sand
28. 28.True or false: a comb is needed for the dissolving test. (a) True (b) False
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.True or false: a balloon is needed for the dissolving test. (a) False (b) True
31. 31.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
32. 32.True or false: cooking oil does not dissolve in water. (a) True (b) False
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) warm water (d) cold water
34. 34.⚖️ 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 stirring (c) the water temperature
35. 35.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) sugar (d) two clear glasses
36. 36.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
37. 37.⚖️ 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 water (c) time to dissolve (d) the kind of sugar
38. 38.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) a magnet (d) warm water
39. 39.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed

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