Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 252 · 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) a cork (b) an ice cube (c) cooking oil (d) a coin
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 three liquids is kept the same. (a) False (b) True
3. 3.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is less dense (c) oil is hot (d) oil is heavier
4. 4.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) in the water layer (c) on top of the oil (d) under the honey
5. 5.⚖️ 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 what we measure. (a) True (b) False
6. 6.⚖️ 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) how much of each liquid (b) the same glass (c) the same three liquids (d) the order of the layers
7. 7.True or false: honey is needed for the density tower. (a) False (b) True
8. 8.⚖️ 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 order of the layers”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔍 Which is the odd one out? (a) a glass marble (b) very salty water (c) a coin (d) a cork
10. 10.True or false: a spoon is not needed for the density tower. (a) True (b) False
11. 11.True or false: a balloon is needed for the density tower. (a) True (b) False
12. 12.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is the densest (d) it is yellow
13. 13.🍯 Is a coin denser or less dense than water? (a) denser than water (b) less dense than water
14. 14.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) bubbles of gas (d) three separate layers
15. 15.True or false: honey is not needed for the density tower. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a glass marble (d) very salty water
17. 17.🧺 Which of these is not needed for the density tower? (a) a spoon (b) honey (c) a tall clear glass (d) turmeric powder
18. 18.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they become solid (c) they mix for ever (d) they turn to honey
19. 19.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil attracts magnets (d) oil makes it rain
20. 20.True or false: air is denser than water. (a) False (b) True
21. 21.⚖️ 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 same three liquids (c) the order of pouring
22. 22.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
23. 23.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) taste each layer (d) pour it on the floor
24. 24.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a mirror (d) a tall clear glass
25. 25.🍯 Which of these is less dense than water? (a) honey (b) an ice cube (c) a glass marble (d) a pebble
26. 26.⚖️ 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 order of pouring”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.⚖️ 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
28. 28.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) honey
29. 29.True or false: a ping-pong ball is less dense than water. (a) True (b) False
30. 30.True or false: a battery cell is not needed for the density tower. (a) True (b) False
31. 31.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
32. 32.True or false: a pebble is less dense than water. (a) True (b) False
33. 33.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
34. 34.📘 What does “dense” mean? (a) very colourful (b) very thin (c) heavy for its size (d) very hot
35. 35.True or false: yeast is needed for the density tower. (a) True (b) False
36. 36.🧺 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
37. 37.⚖️ 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
38. 38.🔮 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
39. 39.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) air (d) a cork

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