Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 121 · 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.True or false: sugar in warm water dissolves faster. (a) False (b) True
2. 2.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar left unstirred (d) sugar in icy water
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
4. 4.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) chalk powder (d) table salt
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a teaspoon (d) a magnet
7. 7.⚖️ 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
8. 8.⚖️ 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) time to dissolve (c) the water temperature (d) the amount of sugar
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
10. 10.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) sand (d) baking soda
11. 11.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) cold water (c) two clear glasses (d) sugar
12. 12.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.True or false: glucose powder does not dissolve in water. (a) True (b) False
15. 15.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
16. 16.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) chalk powder (d) sugar
17. 17.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
18. 18.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) a teaspoon (d) a comb
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) sugar (d) a balloon
22. 22.True or false: sugar left unstirred dissolves slower. (a) False (b) True
23. 23.⚖️ 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
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
25. 25.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
26. 26.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
27. 27.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) baking soda (d) table salt
28. 28.🔮 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) all of it dissolves (c) the water turns solid (d) some stays undissolved
29. 29.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
30. 30.True or false: warm water is not needed for the dissolving test. (a) True (b) False
31. 31.True or false: a magnet is needed for the dissolving test. (a) True (b) False
32. 32.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
34. 34.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
35. 35.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) honey (d) cold water
36. 36.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar left unstirred (d) sugar in icy water
37. 37.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal
38. 38.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) warm water (c) sugar (d) cold water
39. 39.True or false: sugar is needed for the dissolving test. (a) True (b) False
40. 40.⚖️ 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 water temperature (c) the kind of sugar

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