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