Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 551 · 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 is the odd one out? (a) sugar (b) glucose powder (c) sawdust (d) table salt
2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
3. 3.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a mirror (c) two clear glasses (d) cold water
4. 4.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar in icy water (d) sugar stirred well
6. 6.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
7. 7.True or false: powdered sugar dissolves slower. (a) False (b) True
8. 8.⚖️ 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 amount of sugar
9. 9.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
10. 10.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
14. 14.True or false: a comb is needed for the dissolving test. (a) True (b) False
15. 15.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
16. 16.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
18. 18.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
19. 19.True or false: baking soda does not dissolve in water. (a) False (b) True
20. 20.True or false: sugar dissolves in water. (a) False (b) True
21. 21.True or false: a comb is not needed for the dissolving test. (a) True (b) False
22. 22.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
23. 23.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a mirror (c) cotton wool (d) a balloon
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
25. 25.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
26. 26.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the amount of sugar (d) the stirring
28. 28.🥄 Which of these does not dissolve in water? (a) glucose powder (b) chalk powder (c) sugar (d) food colour
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) sugar (d) two clear glasses
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) two clear glasses (d) sugar
31. 31.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.⚖️ 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
33. 33.True or false: powdered sugar dissolves faster. (a) False (b) True
34. 34.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
35. 35.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) two clear glasses (d) a balloon
36. 36.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
37. 37.⚖️ 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 change it (c) we measure it
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
39. 39.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
40. 40.🥄 Which of these does not dissolve in water? (a) sugar (b) table salt (c) glucose powder (d) cooking oil

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