Density Tower Experiment Worksheet
What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.
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- 1.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
- 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a tall clear glass (d) a mirror
- 3.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is yellow (d) it is the densest
- 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) water with food colour (c) a tall clear glass (d) a spoon
- 5.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
- 6.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is what we measure. (a) True (b) False
- 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) yeast (d) a tall clear glass
- 8.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is the one thing we change. (a) False (b) True
- 9.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) taste each layer (d) throw the glass
- 10.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is sticky (d) oil is hot
- 11.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the water layer (c) on top of the oil (d) in the oil layer
- 12.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) one mixed colour (c) the glass gets hot (d) bubbles of gas
- 13.True or false: a spoon is not needed for the density tower. (a) False (b) True
- 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) turmeric powder (c) a spoon (d) cooking oil
- 15.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the same glass (b) how much of each liquid (c) the order of pouring (d) the order of the layers
- 16.🧺 Which of these is needed for the density tower? (a) a balloon (b) a magnet (c) yeast (d) cooking oil
- 17.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil attracts magnets (d) oil makes it rain
- 18.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is what we measure. (a) True (b) False
- 19.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
- 20.🍯 Which of these is denser than water? (a) very salty water (b) an ice cube (c) a ping-pong ball (d) a cork
- 21.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) honey (c) a tall clear glass (d) a mirror
- 22.True or false: yeast is not needed for the density tower. (a) False (b) True
- 23.True or false: a ping-pong ball is denser than water. (a) True (b) False
- 24.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
- 25.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) how much of each liquid (c) the order of the layers
- 26.🍯 Which of these is less dense than water? (a) a ping-pong ball (b) honey (c) a coin (d) a pebble
- 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a magnet (c) honey (d) cooking oil
- 28.🧺 Which of these is not needed for the density tower? (a) honey (b) a tall clear glass (c) a balloon (d) cooking oil
- 29.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
- 30.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same three liquids”? (a) we measure it (b) we change it (c) we keep it the same
- 31.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
- 32.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is kept the same. (a) False (b) True
- 33.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of the layers is the one thing we change. (a) True (b) False
- 34.🧺 Which of these is needed for the density tower? (a) a magnet (b) a battery cell (c) a balloon (d) a tall clear glass
- 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a tall clear glass (d) a battery cell
- 36.True or false: cooking oil is denser than water. (a) True (b) False
- 37.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a glass marble (d) honey
- 38.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) honey (d) a mirror
- 39.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) air (d) honey
- 40.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
Answer key
- denser than water
- a mirror
- it is the densest
- a balloon
- we change it
- False
- yeast
- False
- do not lick the spoon
- oil is less dense
- at the very bottom
- three separate layers
- False
- turmeric powder
- the order of pouring
- cooking oil
- spilled oil is slippery
- False
- less dense than water
- very salty water
- a mirror
- True
- False
- needed
- how much of each liquid
- a ping-pong ball
- a magnet
- a balloon
- not needed
- we keep it the same
- not needed
- False
- False
- a tall clear glass
- a battery cell
- False
- a cork
- honey
- air
- True
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