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.
NameDateTime takenScore ___ / 40
- 1.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
- 2.🔍 Which is the odd one out? (a) cooking oil (b) a ping-pong ball (c) air (d) a pebble
- 3.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) cooking oil (c) a balloon (d) a tall clear glass
- 4.⚖️ 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 glass is what we measure. (a) True (b) False
- 5.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
- 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a magnet (c) a tall clear glass (d) honey
- 7.True or false: a balloon is not needed for the density tower. (a) True (b) False
- 8.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the order of pouring (b) the same glass (c) the order of the layers (d) how much of each liquid
- 9.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
- 10.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
- 11.⚖️ 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 glass is the one thing we change. (a) False (b) True
- 12.🍯 Which of these is denser than water? (a) a cork (b) a glass marble (c) cooking oil (d) a ping-pong ball
- 13.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
- 14.True or false: turmeric powder is needed for the density tower. (a) False (b) True
- 15.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) under the honey (d) in the honey layer
- 16.⚖️ 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) True (b) False
- 17.🔍 Which is the odd one out? (a) a glass marble (b) air (c) a pebble (d) a coin
- 18.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) turmeric powder (c) honey (d) water with food colour
- 19.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
- 20.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
- 21.⚖️ 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 keep it the same (b) we measure it (c) we change it
- 22.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) turmeric powder (d) a spoon
- 23.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil turns into honey (d) oil attracts magnets
- 24.⚖️ 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 keep it the same (c) we change it
- 25.⚖️ 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 change it (b) we measure it (c) we keep it the same
- 26.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) cooking oil (c) a tall clear glass (d) water with food colour
- 27.True or false: honey is needed for the density tower. (a) True (b) False
- 28.⚖️ 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) how much of each liquid (b) the order of pouring (c) the order of the layers
- 29.⚖️ 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
- 30.True or false: a cork is denser than water. (a) False (b) True
- 31.🍯 Which of these is denser than water? (a) an ice cube (b) a cork (c) honey (d) cooking oil
- 32.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) in the water layer (d) on top of the oil
- 33.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a spoon (d) turmeric powder
- 34.True or false: an ice cube is less dense than water. (a) False (b) True
- 35.True or false: a mirror is not needed for the density tower. (a) False (b) True
- 36.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a ping-pong ball (d) an ice cube
- 37.⚖️ 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 three liquids (b) the order of pouring (c) the same glass (d) how much of each liquid
- 38.True or false: yeast is not needed for the density tower. (a) False (b) True
- 39.True or false: honey is less dense than water. (a) False (b) True
- 40.True or false: a cork is less dense than water. (a) True (b) False
Answer key
- needed
- a pebble
- a balloon
- False
- needed
- a magnet
- True
- the order of the layers
- less dense than water
- denser than water
- False
- a glass marble
- denser than water
- False
- on top of the oil
- False
- air
- turmeric powder
- less dense than water
- oil is less dense
- we change it
- a spoon
- spilled oil is slippery
- we measure it
- we keep it the same
- a battery cell
- True
- how much of each liquid
- True
- False
- honey
- at the very bottom
- turmeric powder
- True
- True
- a coin
- the order of pouring
- True
- False
- True
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids