Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 243 · 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 pebble (b) air (c) cooking oil (d) a ping-pong ball
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) turmeric powder (d) a tall clear glass
3. 3.🍯 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
4. 4.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) spilled oil is slippery (d) oil attracts magnets
5. 5.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) a battery cell (d) honey
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 what we measure? (a) the same three liquids (b) the order of pouring (c) the same glass (d) the order of the layers
8. 8.⚖️ 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
9. 9.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they become solid (d) they mix for ever
10. 10.True or false: very salty water is less dense than water. (a) True (b) False
11. 11.True or false: air is denser than water. (a) False (b) True
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 same glass is kept the same. (a) True (b) False
13. 13.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very colourful (d) very thin
14. 14.⚖️ 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
15. 15.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a ping-pong ball (b) air (c) cooking oil (d) honey
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) water with food colour (d) a balloon
18. 18.True or false: a spoon is not needed for the density tower. (a) True (b) False
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) water with food colour (d) a mirror
20. 20.⚖️ 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) the same three liquids (c) how much of each liquid (d) the order of pouring
21. 21.🍯 Which of these is denser than water? (a) air (b) a coin (c) cooking oil (d) an ice cube
22. 22.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a battery cell (c) a mirror (d) yeast
23. 23.True or false: an ice cube is denser than water. (a) True (b) False
24. 24.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
25. 25.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
26. 26.⚖️ 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 pouring (b) the order of the layers (c) the same glass
27. 27.🍯 Which of these is denser than water? (a) a cork (b) a glass marble (c) a ping-pong ball (d) an ice cube
28. 28.🍯 Which of these is less dense than water? (a) honey (b) very salty water (c) a coin (d) a ping-pong ball
29. 29.True or false: honey is less dense than water. (a) False (b) True
30. 30.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
31. 31.⚖️ 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 measure it (b) we keep it the same (c) we change it
32. 32.🔍 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
33. 33.True or false: honey is denser than water. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) an ice cube (b) honey (c) a coin (d) a glass marble
35. 35.⚖️ 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
36. 36.True or false: cooking oil is needed for the density tower. (a) True (b) False
37. 37.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the oil
38. 38.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
39. 39.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) at the very bottom (d) in the water layer
40. 40.🍯 Which of these is less dense than water? (a) cooking oil (b) a coin (c) very salty water (d) honey

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