Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 400 · 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 coin is less dense than water. (a) False (b) True
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) a magnet (d) cooking oil
3. 3.⚖️ 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 the layers (b) the same three liquids (c) the same glass (d) the order of pouring
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.🧺 Which of these is needed for the density tower? (a) yeast (b) a magnet (c) water with food colour (d) a mirror
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) honey (c) cooking oil (d) a tall clear glass
7. 7.⚖️ 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 glass (b) how much of each liquid (c) the same three liquids (d) the order of pouring
8. 8.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
9. 9.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) three separate layers (c) the glass gets hot (d) one mixed colour
10. 10.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a battery cell (c) cooking oil (d) a spoon
12. 12.True or false: honey is less dense than water. (a) True (b) False
13. 13.True or false: cooking oil is not needed for the density tower. (a) False (b) True
14. 14.🍯 Which of these is denser than water? (a) a coin (b) cooking oil (c) an ice cube (d) air
15. 15.True or false: a balloon is needed for the density tower. (a) True (b) False
16. 16.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) honey (c) a tall clear glass (d) yeast
17. 17.⚖️ 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 the one thing we change. (a) True (b) False
18. 18.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they turn to honey (d) they become solid
19. 19.True or false: yeast is needed for the density tower. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a cork (b) very salty water (c) cooking oil (d) an ice cube
21. 21.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) taste each layer (d) do not lick the spoon
22. 22.⚖️ 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 what we measure. (a) True (b) False
23. 23.🍯 Which of these is less dense than water? (a) very salty water (b) a ping-pong ball (c) a coin (d) a pebble
24. 24.True or false: a pebble is less dense than water. (a) False (b) True
25. 25.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is sticky (d) oil is hot
26. 26.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the stickiest (c) it is yellow (d) it is the densest
27. 27.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
28. 28.🧺 Which of these is not needed for the density tower? (a) honey (b) turmeric powder (c) a tall clear glass (d) cooking oil
29. 29.🧺 Which of these is needed for the density tower? (a) a balloon (b) cooking oil (c) a magnet (d) yeast
30. 30.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) a coin (d) cooking oil
31. 31.🍯 Which of these is less dense than water? (a) very salty water (b) honey (c) an ice cube (d) a coin
32. 32.🔮 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) in the water layer (d) under the honey
33. 33.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
34. 34.True or false: a battery cell is not needed for the density tower. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) cooking oil (b) air (c) an ice cube (d) a pebble
36. 36.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
38. 38.⚖️ 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) True (b) False
39. 39.🔍 Which is the odd one out? (a) a ping-pong ball (b) cooking oil (c) a glass marble (d) air
40. 40.🧺 Which of these is needed for the density tower? (a) a magnet (b) honey (c) a mirror (d) turmeric powder

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