Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 608 · 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 left unstirred dissolves faster. (a) True (b) False
2. 2.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a balloon (d) cold water
3. 3.⚖️ 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
4. 4.🔍 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
5. 5.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
6. 6.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) a clock or timer (d) honey
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a balloon (c) a clock or timer (d) two clear glasses
8. 8.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) honey (c) a comb (d) two clear glasses
9. 9.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
10. 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
11. 11.🔮 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
12. 12.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
13. 13.True or false: sawdust does not dissolve in water. (a) True (b) False
14. 14.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sugar (d) small pebbles
15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
16. 16.True or false: baking soda dissolves in water. (a) True (b) False
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 stirring (c) the water temperature
18. 18.True or false: sugar is not needed for the dissolving test. (a) True (b) False
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
20. 20.🥄 Which of these does not dissolve in water? (a) chalk powder (b) food colour (c) baking soda (d) glucose powder
21. 21.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
23. 23.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
24. 24.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) sawdust (d) sand
25. 25.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar left unstirred (c) powdered sugar (d) sugar stirred well
26. 26.⚖️ 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
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
29. 29.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) a teaspoon (d) a comb
30. 30.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) a mirror (d) warm water
31. 31.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it spread in the water (d) it sank as sand
32. 32.⚖️ 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
33. 33.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a crystal (d) a rainbow
34. 34.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
35. 35.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
36. 36.⚖️ 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) the amount of water (c) time to dissolve
37. 37.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) baking soda (d) chalk powder
38. 38.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
40. 40.True or false: chalk powder dissolves in water. (a) False (b) True

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