Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 160 · 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) table salt (b) chalk powder (c) food colour (d) glucose powder
2. 2.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a rainbow (d) a solution
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) True (b) False
4. 4.True or false: table salt dissolves in water. (a) False (b) True
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 measure it (c) we keep it the same
6. 6.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a mirror (c) a clock or timer (d) two clear glasses
8. 8.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) warm water is thicker (d) sugar likes the dark
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) honey (c) sugar (d) a clock or timer
10. 10.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) sugar (d) sawdust
11. 11.🥄 Which of these dissolves faster? (a) sugar stirred well (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
12. 12.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) cooking oil (d) baking soda
13. 13.True or false: honey is needed for the dissolving test. (a) False (b) True
14. 14.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in warm water (d) sugar in icy water
15. 15.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
17. 17.⚖️ 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 amount of water (c) time to dissolve (d) the water temperature
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
19. 19.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
20. 20.True or false: sugar left unstirred dissolves slower. (a) True (b) False
21. 21.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the kind of sugar (c) the stirring (d) the water temperature
23. 23.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
26. 26.⚖️ 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
27. 27.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
28. 28.⚖️ 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
29. 29.True or false: warm water is needed for the dissolving test. (a) True (b) False
30. 30.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) True (b) False
33. 33.True or false: warm water is not needed for the dissolving test. (a) False (b) True
34. 34.⚖️ 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
35. 35.🔮 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) the water turns solid (c) some stays undissolved (d) all of it dissolves
36. 36.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
38. 38.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
39. 39.⚖️ 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 measure it (c) we change it
40. 40.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water

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