Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 293 · 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.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
2. 2.⚖️ 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 change it (b) we measure it (c) we keep it the same
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
4. 4.True or false: an ice-cream stick sinks in water. (a) False (b) True
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) a piece of thermocol (c) a metal key (d) an iron nail
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
9. 9.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) a glass marble (d) a feather
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a mirror (d) turmeric powder
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) a towel for spills
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a balloon (d) small test objects
16. 16.🧺 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 magnet (d) a towel for spills
17. 17.True or false: an empty capped bottle sinks in water. (a) False (b) True
18. 18.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
19. 19.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a magnet (d) a results table
21. 21.🛟 Which of these floats on water? (a) a steel spoon (b) a ping-pong ball (c) a coin (d) a ball of clay
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the kind of clay (d) the shape of the clay
23. 23.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
24. 24.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a pebble (d) a ping-pong ball
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
26. 26.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 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) small test objects (d) a results table
28. 28.🧺 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) yeast (d) small test objects
29. 29.🛟 Which of these sinks in water? (a) a ball of clay (b) a ping-pong ball (c) a cork (d) an empty capped bottle
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
31. 31.True or false: a piece of thermocol sinks in water. (a) True (b) False
32. 32.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
33. 33.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
35. 35.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
37. 37.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
38. 38.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a piece of thermocol (d) a coin
39. 39.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
40. 40.True or false: a pebble sinks in water. (a) True (b) False

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