Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 925 · 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: air is denser than water. (a) True (b) False
2. 2.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) throw the glass (c) do not lick the spoon (d) pour it on the floor
3. 3.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) a coin (d) an ice cube
4. 4.🔮 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
5. 5.True or false: a battery cell is needed for the density tower. (a) False (b) True
6. 6.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
7. 7.🍯 Which of these is denser than water? (a) air (b) cooking oil (c) very salty water (d) a ping-pong ball
8. 8.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a magnet (c) honey (d) a spoon
9. 9.True or false: a balloon is not needed for the density tower. (a) False (b) True
10. 10.True or false: a cork is denser than water. (a) True (b) False
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) a mirror (d) water with food colour
12. 12.⚖️ 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
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 what we measure? (a) the same three liquids (b) how much of each liquid (c) the order of the layers (d) the same glass
14. 14.True or false: a magnet is needed for the density tower. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) an ice cube (b) air (c) a ping-pong ball (d) a coin
16. 16.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) a cork (d) air
17. 17.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
18. 18.True or false: honey is not needed for the density tower. (a) True (b) False
19. 19.True or false: water with food colour is not needed for the density tower. (a) True (b) False
20. 20.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
21. 21.🧺 Which of these is not needed for the density tower? (a) a spoon (b) yeast (c) cooking oil (d) honey
22. 22.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
23. 23.True or false: an ice cube is denser than water. (a) False (b) True
24. 24.⚖️ 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) False (b) True
25. 25.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
26. 26.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the honey layer (c) under the honey (d) in the water layer
27. 27.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
28. 28.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
29. 29.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) a tall clear glass (d) a balloon
31. 31.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they mix for ever (d) they separate again
32. 32.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) an ice cube (d) a pebble
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) water with food colour (d) a battery cell
34. 34.True or false: honey is less dense than water. (a) True (b) False
35. 35.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
36. 36.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
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 the layers is the one thing we change. (a) True (b) False
38. 38.🧺 Do we need honey for the density tower? (a) needed (b) not needed
39. 39.⚖️ 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
40. 40.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed

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