Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 946 · 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 should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
3. 3.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
4. 4.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) an ice cube (d) a steel spoon
5. 5.True or false: an ice cube sinks in water. (a) True (b) False
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a balloon (d) a magnet
8. 8.⚖️ 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) 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 towel for spills (d) a magnet
10. 10.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a towel for spills (d) small test objects
13. 13.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) an iron nail (d) a cork
14. 14.🛟 Does a cork float or sink in water? (a) floats (b) sinks
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
17. 17.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a steel spoon (d) a feather
18. 18.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the kind of clay (c) the shape of the clay
20. 20.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a battery cell (d) a tub of water
22. 22.🔍 Which is the odd one out? (a) a dry leaf (b) a ping-pong ball (c) a piece of thermocol (d) a glass marble
23. 23.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
24. 24.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
25. 25.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) a pebble (d) a glass marble
27. 27.🔮 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 can float (d) it sinks faster
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a towel for spills (d) a results table
29. 29.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a towel for spills (d) a magnet
32. 32.🛟 Which of these floats on water? (a) an iron nail (b) a piece of thermocol (c) a glass marble (d) a steel spoon
33. 33.True or false: a metal key floats on water. (a) False (b) True
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a towel for spills (d) yeast
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
36. 36.⚖️ 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) True (b) False
37. 37.⚖️ 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 tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
38. 38.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
39. 39.True or false: a cork sinks in water. (a) True (b) False
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a results table (d) a tub of water

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