Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 875 · 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.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
2. 2.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is yellow (c) it is the stickiest (d) it is the coldest
3. 3.True or false: an ice cube is less dense than water. (a) True (b) False
4. 4.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they mix for ever (d) they become solid
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) water with food colour (c) yeast (d) honey
6. 6.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) cooking oil (d) a glass marble
7. 7.⚖️ 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 kept the same. (a) True (b) False
8. 8.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
9. 9.⚖️ 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 order of pouring (c) the same glass (d) the same three liquids
10. 10.⚖️ 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
11. 11.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
12. 12.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
13. 13.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) throw the glass (d) taste each layer
14. 14.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.⚖️ 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) False (b) True
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: the order of the layers is the one thing we change. (a) True (b) False
18. 18.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) honey (c) yeast (d) water with food colour
19. 19.🔍 Which layer is on top in the honey-water-oil tower? (a) honey (b) coloured water (c) the spoon (d) cooking oil
20. 20.🛟 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
21. 21.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a pebble (c) air (d) an ice cube
22. 22.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) at the very bottom (c) on top of the oil (d) in the water layer
23. 23.True or false: cooking oil is not needed for the density tower. (a) False (b) True
24. 24.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) under the honey (d) in the water layer
25. 25.True or false: a ping-pong ball is denser than water. (a) True (b) False
26. 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) turmeric powder (c) water with food colour (d) honey
27. 27.True or false: yeast is not needed for the density tower. (a) True (b) False
28. 28.⚖️ 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 change it (b) we keep it the same (c) we measure it
29. 29.⚖️ 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
30. 30.⚖️ 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 kept the same. (a) True (b) False
31. 31.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
32. 32.⚖️ 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) how much of each liquid (c) the order of the layers
33. 33.True or false: a battery cell is needed for the density tower. (a) True (b) False
34. 34.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
35. 35.True or false: honey is less dense than water. (a) True (b) False
36. 36.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) a glass marble (d) a ping-pong ball
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) a battery cell (d) a tall clear glass
38. 38.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
39. 39.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) very salty water (d) a cork
40. 40.🍯 Which of these is less dense than water? (a) a coin (b) a glass marble (c) honey (d) an ice cube

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