Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 202 · 40 questions

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.

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

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