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) time to dissolve (b) the amount of water (c) the water temperature (d) the stirring
- 2.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) sugar (d) table salt
- 3.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
- 4.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
- 5.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) small pebbles (d) chalk powder
- 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
- 7.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
- 8.True or false: powdered sugar dissolves slower. (a) True (b) False
- 9.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) food colour (d) sugar
- 10.True or false: sugar left unstirred dissolves faster. (a) True (b) False
- 11.⚖️ 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 stirring (c) the amount of water (d) time to dissolve
- 12.🥄 Which of these dissolves faster? (a) sugar stirred well (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
- 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) False (b) True
- 14.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
- 15.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) two clear glasses (d) a mirror
- 16.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
- 17.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
- 18.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) glucose powder (d) sand
- 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a balloon (d) warm water
- 20.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) chalk powder (d) baking soda
- 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) the water temperature (c) time to dissolve
- 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
- 23.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a magnet (c) a clock or timer (d) honey
- 24.True or false: sugar in warm water dissolves slower. (a) True (b) False
- 25.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) sand (d) sugar
- 26.🧺 Which of these is needed for the dissolving test? (a) honey (b) cotton wool (c) sugar (d) a magnet
- 27.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
- 28.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
- 29.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a balloon (d) warm water
- 30.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) warm water (d) cotton wool
- 31.🔮 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) some stays undissolved (d) the water turns solid
- 32.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
- 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) two clear glasses (d) a comb
- 34.True or false: honey is not needed for the dissolving test. (a) True (b) False
- 35.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
- 36.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
- 37.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
- 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) two clear glasses (d) a teaspoon
- 39.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) not at all (d) the same
- 40.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) a balloon (d) a teaspoon
Answer key
- the water temperature
- small pebbles
- dissolves in water
- not needed
- table salt
- powdered sugar
- a grown-up
- False
- chalk powder
- False
- time to dissolve
- sugar stirred well
- False
- dissolves in water
- a mirror
- faster
- True
- glucose powder
- a balloon
- chalk powder
- the stirring
- False
- a clock or timer
- False
- sugar
- sugar
- False
- not needed
- warm water
- cotton wool
- some stays undissolved
- faster
- a comb
- True
- slower
- look for leftover grains
- dissolves in water
- a magnet
- faster
- a teaspoon
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