Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 775 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
2. 2.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
3. 3.🔍 Which is the odd one out? (a) a ping-pong ball (b) a dry leaf (c) a ball of clay (d) a cork
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
5. 5.True or false: a metal key floats on water. (a) False (b) True
6. 6.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
7. 7.🛟 Which of these floats on water? (a) a steel spoon (b) a feather (c) a pebble (d) a ball of clay
8. 8.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a mirror (d) a towel for spills
10. 10.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) a pebble (d) an ice-cream stick
11. 11.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a cork (d) a pebble
12. 12.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the shape of the clay (b) the amount of clay (c) whether it floats (d) the tub of water
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a tub of water (d) a results table
15. 15.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
18. 18.🔍 Which is the odd one out? (a) an empty capped bottle (b) a steel spoon (c) an ice-cream stick (d) an ice cube
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
20. 20.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) yeast (d) small test objects
22. 22.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) a metal key (d) a ping-pong ball
23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
24. 24.🛟 Which of these floats on water? (a) a ping-pong ball (b) a pebble (c) a ball of clay (d) a metal key
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) a balloon (d) a magnet
26. 26.🛟 Does a cork float or sink in water? (a) sinks (b) floats
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) a results table (d) small test objects
29. 29.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
31. 31.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
34. 34.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
36. 36.True or false: an empty capped bottle sinks in water. (a) True (b) False
37. 37.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) a metal key (d) an empty capped bottle
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) yeast
39. 39.🛟 Which of these sinks in water? (a) a glass marble (b) a piece of thermocol (c) an empty capped bottle (d) a ping-pong ball
40. 40.🔍 Which is the odd one out? (a) a metal key (b) a pebble (c) a glass marble (d) a piece of thermocol

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