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