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 of these is needed for the density tower? (a) water with food colour (b) a balloon (c) a magnet (d) a mirror
- 2.🍯 Which of these is denser than water? (a) cooking oil (b) a ping-pong ball (c) air (d) a coin
- 3.🧺 Which of these is needed for the density tower? (a) yeast (b) a balloon (c) turmeric powder (d) a tall clear glass
- 4.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
- 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) a tall clear glass (d) a battery cell
- 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 order of pouring is the one thing we change. (a) True (b) False
- 7.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
- 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) yeast (d) a spoon
- 9.⚖️ 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 keep it the same (b) we change it (c) we measure it
- 10.📘 What does “dense” mean? (a) very thin (b) very colourful (c) heavy for its size (d) very hot
- 11.True or false: a cork is less dense than water. (a) False (b) True
- 12.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
- 13.⚖️ 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 the layers (c) the order of pouring (d) the same glass
- 14.True or false: a magnet is needed for the density tower. (a) True (b) False
- 15.True or false: an ice cube is denser than water. (a) False (b) True
- 16.⚖️ 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 kept the same. (a) False (b) True
- 17.True or false: a pebble is less dense than water. (a) True (b) False
- 18.True or false: honey is needed for the density tower. (a) False (b) True
- 19.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the densest (d) it is the coldest
- 20.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
- 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 the layers”? (a) we measure it (b) we change it (c) we keep it the same
- 22.🫗 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
- 23.True or false: a mirror is not needed for the density tower. (a) False (b) True
- 24.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) honey (c) cooking oil (d) water with food colour
- 25.🍯 Which of these is less dense than water? (a) an ice cube (b) a pebble (c) a glass marble (d) a coin
- 26.⚖️ 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
- 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 kept the same. (a) True (b) False
- 28.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they become solid (d) they separate again
- 29.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a spoon (d) yeast
- 30.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 31.True or false: a glass marble is denser than water. (a) False (b) True
- 32.⚖️ 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) how much of each liquid (d) the order of the layers
- 33.⚖️ 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
- 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 same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
- 35.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) a glass marble (d) a cork
- 36.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
- 37.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
- 38.True or false: honey is less dense than water. (a) False (b) True
- 39.🍯 Which of these is denser than water? (a) an ice cube (b) honey (c) cooking oil (d) a cork
- 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) turmeric powder (d) cooking oil
Answer key
- water with food colour
- a coin
- a tall clear glass
- cooking oil
- a battery cell
- True
- less dense than water
- yeast
- we keep it the same
- heavy for its size
- True
- needed
- the order of pouring
- False
- False
- True
- False
- True
- it is the densest
- denser than water
- we measure it
- oil is less dense
- True
- turmeric powder
- an ice cube
- True
- True
- they separate again
- yeast
- not needed
- True
- the order of the layers
- the same three liquids
- we keep it the same
- a glass marble
- denser than water
- less dense than water
- False
- honey
- turmeric powder
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids