Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 902 · 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.True or false: a pebble is less dense than water. (a) False (b) True
2. 2.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a tall clear glass (c) a mirror (d) a magnet
3. 3.🧺 Which of these is not needed for the density tower? (a) honey (b) a battery cell (c) a spoon (d) water with food colour
4. 4.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
5. 5.True or false: a coin is denser than water. (a) True (b) False
6. 6.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they mix for ever (c) they turn to honey (d) they separate again
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a magnet (c) a tall clear glass (d) honey
8. 8.True or false: a glass marble is less dense than water. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) honey (d) a pebble
10. 10.🔮 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
11. 11.⚖️ 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
12. 12.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
13. 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 kept the same? (a) the same glass (b) the order of the layers (c) the order of pouring
14. 14.⚖️ 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 change it (c) we measure it
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) water with food colour (d) a balloon
16. 16.🍯 Which of these is less dense than water? (a) a cork (b) a pebble (c) a coin (d) honey
17. 17.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
18. 18.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) throw the glass (c) pour it on the floor (d) do not lick the spoon
19. 19.⚖️ 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 glass (b) how much of each liquid (c) the order of the layers (d) the order of pouring
20. 20.True or false: a balloon is not needed for the density tower. (a) True (b) False
21. 21.⚖️ 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
22. 22.🧺 Which of these is needed for the density tower? (a) a mirror (b) a magnet (c) yeast (d) water with food colour
23. 23.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a mirror (c) honey (d) water with food colour
24. 24.🔍 Which is the odd one out? (a) very salty water (b) an ice cube (c) a cork (d) cooking oil
25. 25.True or false: cooking oil is less dense than water. (a) True (b) False
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a battery cell (d) a tall clear glass
27. 27.📘 What does “dense” mean? (a) very hot (b) very colourful (c) heavy for its size (d) very thin
28. 28.True or false: yeast is needed for the density tower. (a) False (b) True
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) yeast (c) water with food colour (d) honey
30. 30.🔮 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) on top of the oil (d) under the honey
31. 31.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is sticky (c) oil is hot (d) oil is less dense
32. 32.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) a coin (d) an ice cube
33. 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. 34.🔍 Which is the odd one out? (a) an ice cube (b) air (c) a cork (d) a glass marble
35. 35.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
36. 36.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil turns into honey (c) oil makes it rain (d) oil attracts magnets
37. 37.⚖️ 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) True (b) False
38. 38.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) water with food colour (d) a mirror
40. 40.True or false: a coin is less dense than water. (a) True (b) False

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