Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 266 · 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.⚖️ 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
2. 2.⚖️ 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 measure it (b) we keep it the same (c) we change it
3. 3.🧺 Do we need honey for the density tower? (a) not needed (b) needed
4. 4.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) taste each layer (c) do not lick the spoon (d) pour it on the floor
5. 5.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the oil layer (d) in the water layer
6. 6.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
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 order of pouring (b) the same three liquids (c) the order of the layers (d) how much of each liquid
8. 8.True or false: air is denser than water. (a) False (b) True
9. 9.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is sticky (c) oil is heavier (d) oil is hot
10. 10.⚖️ 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) the order of the layers (c) the order of pouring (d) how much of each liquid
11. 11.True or false: water with food colour is not needed for the density tower. (a) False (b) True
12. 12.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they mix for ever (d) they turn to honey
14. 14.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a tall clear glass (d) a magnet
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) honey (d) a mirror
16. 16.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
17. 17.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) three separate layers (d) one mixed colour
19. 19.⚖️ 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
20. 20.🧺 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) honey
21. 21.🧺 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
22. 22.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
23. 23.🍯 Which of these is less dense than water? (a) honey (b) very salty water (c) a coin (d) cooking oil
24. 24.True or false: a glass marble is denser than water. (a) False (b) True
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) an ice cube (d) a coin
27. 27.True or false: a balloon is needed for the density tower. (a) True (b) False
28. 28.🧺 Which of these is needed for the density tower? (a) a spoon (b) a battery cell (c) turmeric powder (d) a magnet
29. 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) a tall clear glass (d) turmeric powder
30. 30.🔍 Which is the odd one out? (a) a pebble (b) cooking oil (c) honey (d) a coin
31. 31.🍯 Which of these is less dense than water? (a) a coin (b) an ice cube (c) honey (d) a glass marble
32. 32.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is yellow (d) it is the coldest
33. 33.True or false: very salty water is less dense than water. (a) True (b) False
34. 34.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
35. 35.🧺 Which of these is not needed for the density tower? (a) honey (b) turmeric powder (c) a tall clear glass (d) a spoon
36. 36.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
37. 37.True or false: a balloon is not needed for the density tower. (a) False (b) True
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 three liquids is kept the same. (a) True (b) False
39. 39.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) in the water layer (d) on top of the oil
40. 40.True or false: a ping-pong ball is denser than water. (a) True (b) False

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