Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 209 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a magnet (c) sugar (d) two clear glasses
5. 5.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) a clock or timer (d) a teaspoon
7. 7.True or false: a big sugar cube dissolves slower. (a) False (b) True
8. 8.True or false: sand does not dissolve in water. (a) True (b) False
9. 9.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a magnet (d) a solution
10. 10.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
12. 12.⚖️ 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
13. 13.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
14. 14.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it settles at the bottom (d) it floats up
15. 15.True or false: cooking oil dissolves in water. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) cooking oil (d) baking soda
17. 17.True or false: sugar stirred well dissolves faster. (a) True (b) False
18. 18.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) food colour (d) sugar
19. 19.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of water (c) the water temperature (d) the kind of sugar
21. 21.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) cooking oil (d) sugar
22. 22.True or false: food colour does not dissolve in water. (a) False (b) True
23. 23.🥄 Which of these dissolves in water? (a) sand (b) glucose powder (c) chalk powder (d) cooking oil
24. 24.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
25. 25.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) small pebbles (d) baking soda
26. 26.🥄 Which of these dissolves slower? (a) sugar in icy water (b) powdered sugar (c) sugar in warm water (d) sugar stirred well
27. 27.🔍 Which is the odd one out? (a) sugar (b) table salt (c) cooking oil (d) food colour
28. 28.True or false: honey is not needed for the dissolving test. (a) False (b) True
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) time to dissolve (c) the water temperature (d) the stirring
32. 32.⚖️ 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
33. 33.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
34. 34.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a teaspoon (c) a mirror (d) a comb
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🔍 Which is the odd one out? (a) sugar (b) food colour (c) sand (d) table salt
37. 37.⚖️ 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 amount of water
38. 38.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
39. 39.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
40. 40.True or false: sawdust dissolves in water. (a) False (b) True

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