Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 46 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a magnet (c) water with food colour (d) cooking oil
2. 2.🧺 Do we need honey for the density tower? (a) not needed (b) needed
3. 3.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is less dense (d) oil is sticky
4. 4.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
5. 5.True or false: a pebble is denser than water. (a) True (b) False
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) yeast (c) a spoon (d) a tall clear glass
7. 7.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) cooking oil (c) water with food colour (d) a tall clear glass
10. 10.⚖️ 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) False (b) True
11. 11.⚖️ 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 glass (b) the order of the layers (c) how much of each liquid (d) the order of pouring
12. 12.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) cooking oil (d) a pebble
13. 13.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
14. 14.🍯 Which of these is denser than water? (a) honey (b) a ping-pong ball (c) air (d) a cork
15. 15.⚖️ 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) False (b) True
16. 16.True or false: very salty water is denser than water. (a) True (b) False
17. 17.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
18. 18.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
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 pouring”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.⚖️ 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 measure it (b) we keep it the same (c) we change it
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the water layer (c) in the honey layer (d) on top of the oil
23. 23.True or false: a mirror is needed for the density tower. (a) False (b) True
24. 24.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) pour it on the floor (c) do not lick the spoon (d) throw the glass
25. 25.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
26. 26.🔍 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
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: how much of each liquid is what we measure. (a) False (b) True
28. 28.🔮 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
29. 29.True or false: a balloon is needed for the density tower. (a) False (b) True
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 same three liquids is kept the same. (a) True (b) False
31. 31.True or false: yeast is needed for the density tower. (a) False (b) True
32. 32.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
33. 33.True or false: turmeric powder is needed for the density tower. (a) True (b) False
34. 34.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
35. 35.⚖️ 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 order of pouring (c) how much of each liquid
36. 36.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) honey (c) cooking oil (d) coloured water
37. 37.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
38. 38.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
39. 39.⚖️ 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
40. 40.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids