Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 705 · 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.🍯 Which of these is denser than water? (a) an ice cube (b) a cork (c) a ping-pong ball (d) honey
2. 2.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) three separate layers (d) the glass gets hot
3. 3.🍯 Which of these is less dense than water? (a) a glass marble (b) cooking oil (c) honey (d) very salty water
4. 4.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
5. 5.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
6. 6.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.⚖️ 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 three liquids (b) the order of the layers (c) the order of pouring
9. 9.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they become solid (c) they turn to honey (d) they separate again
10. 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 same three liquids is the one thing we change. (a) True (b) False
11. 11.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
12. 12.⚖️ 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 kept the same. (a) False (b) True
13. 13.🧺 Which of these is not needed for the density tower? (a) a magnet (b) cooking oil (c) a tall clear glass (d) a spoon
14. 14.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
15. 15.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) an ice cube (d) cooking oil
16. 16.True or false: a balloon is not needed for the density tower. (a) False (b) True
17. 17.🍯 Which of these is less dense than water? (a) a pebble (b) a cork (c) a coin (d) a glass marble
18. 18.⚖️ 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) False (b) True
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a spoon (c) honey (d) water with food colour
20. 20.True or false: honey is denser than water. (a) True (b) False
21. 21.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
22. 22.🛟 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
23. 23.⚖️ 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) how much of each liquid (b) the order of pouring (c) the same glass (d) the same three liquids
24. 24.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a balloon (c) yeast (d) a magnet
25. 25.🔍 Which is the odd one out? (a) a coin (b) cooking oil (c) air (d) a cork
26. 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 same glass is the one thing we change. (a) False (b) True
27. 27.🍯 Which of these is denser than water? (a) a coin (b) a ping-pong ball (c) cooking oil (d) a cork
28. 28.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) water with food colour (c) a tall clear glass (d) honey
29. 29.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) under the honey (c) in the honey layer (d) in the water layer
30. 30.True or false: air is less dense than water. (a) True (b) False
31. 31.⚖️ 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) True (b) False
32. 32.True or false: a glass marble is denser than water. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) honey (d) air
34. 34.True or false: a pebble is less dense than water. (a) False (b) True
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) water with food colour (d) a mirror
36. 36.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
37. 37.🔍 Which is the odd one out? (a) a pebble (b) very salty water (c) a ping-pong ball (d) honey
38. 38.True or false: a coin is denser than water. (a) True (b) False
39. 39.🛟 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
40. 40.True or false: honey is less dense than water. (a) False (b) True

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