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