Dissolving Experiment Worksheet: Warm and Cold Water
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.
NameDateTime takenScore ___ / 40
- 1.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of sugar (c) time to dissolve (d) the kind of sugar
- 2.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) a teaspoon (d) honey
- 3.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
- 4.⚖️ 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
- 5.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
- 6.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) chalk powder (d) glucose powder
- 7.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
- 8.True or false: sugar in warm water dissolves slower. (a) False (b) True
- 9.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
- 10.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
- 11.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
- 12.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
- 13.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
- 14.⚖️ 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 measure it (c) we change it
- 15.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
- 16.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
- 17.⚖️ 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
- 18.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
- 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
- 20.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a clock or timer (c) honey (d) cold water
- 21.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) a comb (d) two clear glasses
- 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) cold water (d) warm water
- 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) sugar in warm water (d) powdered sugar
- 24.True or false: sugar stirred well dissolves faster. (a) True (b) False
- 25.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
- 26.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) warm water (d) a magnet
- 27.⚖️ 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
- 28.True or false: sand dissolves in water. (a) False (b) True
- 29.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) a clock or timer (d) a balloon
- 30.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
- 31.🔍 Which is the odd one out? (a) food colour (b) sand (c) cooking oil (d) sawdust
- 32.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) cooking oil (d) sugar
- 33.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
- 34.True or false: sugar in icy water dissolves slower. (a) False (b) True
- 35.True or false: sugar is needed for the dissolving test. (a) False (b) True
- 36.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
- 37.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
- 38.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) sand (d) glucose powder
- 39.🥄 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) sawdust (d) food colour
- 40.True or false: small pebbles dissolves in water. (a) True (b) False
Answer key
- the water temperature
- a teaspoon
- dissolves in water
- the amount of water
- faster
- glucose powder
- sugar in warm water
- False
- faster
- needed
- a grown-up
- does not dissolve
- look for leftover grains
- we keep it the same
- slower
- not needed
- we change it
- faster
- True
- honey
- two clear glasses
- a comb
- a big sugar cube
- True
- does not dissolve
- warm water
- True
- False
- a balloon
- sugar stirred well
- food colour
- sugar
- slower
- True
- True
- it settles at the bottom
- faster
- sand
- sawdust
- False
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids