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