Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 409 · 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 of these dissolves in water? (a) chalk powder (b) table salt (c) sawdust (d) sand
2. 2.⚖️ 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
3. 3.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) poke it with a finger (c) smell it closely (d) taste it
4. 4.True or false: sawdust does not dissolve in water. (a) False (b) True
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the amount of water (c) time to dissolve (d) the water temperature
6. 6.⚖️ 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
7. 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) baking soda (d) sawdust
10. 10.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
11. 11.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🥄 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
13. 13.⚖️ 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) True (b) False
14. 14.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) honey (d) a mirror
18. 18.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) some stays undissolved (d) the water turns solid
19. 19.True or false: food colour does not dissolve in water. (a) False (b) True
20. 20.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
21. 21.⚖️ 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
22. 22.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
23. 23.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) a comb (d) a teaspoon
24. 24.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
25. 25.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.True or false: sugar does not dissolve in water. (a) False (b) True
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 kind of sugar (b) the amount of sugar (c) the water temperature (d) the stirring
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) a teaspoon (d) cotton wool
29. 29.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
30. 30.True or false: table salt does not dissolve in water. (a) False (b) True
31. 31.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
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.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
34. 34.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) a teaspoon (d) two clear glasses
36. 36.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) a big sugar cube (d) sugar in icy water
37. 37.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
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 kind of sugar is the one thing we change. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) small pebbles (d) cooking oil

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