Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 854 · 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) table salt (c) cooking oil (d) glucose powder
2. 2.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) sugar (d) warm water
4. 4.True or false: food colour does not dissolve in water. (a) True (b) False
5. 5.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
6. 6.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) let the water evaporate (d) stir it more
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a balloon (c) two clear glasses (d) warm water
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 amount of sugar (b) the water temperature (c) the amount of water (d) the kind of sugar
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) True (b) False
10. 10.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) sugar (c) two clear glasses (d) cold water
11. 11.⚖️ 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
12. 12.True or false: glucose powder does not dissolve in water. (a) False (b) True
13. 13.⚖️ 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
14. 14.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
17. 17.⚖️ 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 amount of water
18. 18.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
19. 19.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) small pebbles (d) sawdust
20. 20.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
21. 21.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
22. 22.🥄 Which of these dissolves in water? (a) sawdust (b) baking soda (c) sand (d) chalk powder
23. 23.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
24. 24.True or false: cold water is needed for the dissolving test. (a) False (b) True
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) sugar (c) cold water (d) two clear glasses
26. 26.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
27. 27.🛟 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
28. 28.True or false: a magnet is not needed for the dissolving test. (a) False (b) True
29. 29.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
31. 31.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) honey (d) a clock or timer
33. 33.⚖️ 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
34. 34.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the stirring
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) two clear glasses (d) a clock or timer
37. 37.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) sugar in icy water
38. 38.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
39. 39.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) chalk powder (d) sawdust
40. 40.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True

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