Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 414 · 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.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
2. 2.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
3. 3.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
4. 4.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) a metal key (b) a ping-pong ball (c) a feather (d) a dry leaf
6. 6.⚖️ 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
7. 7.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a results table (d) a towel for spills
10. 10.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
12. 12.True or false: a cork floats on water. (a) False (b) True
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
14. 14.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
15. 15.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) turmeric powder (d) a results table
17. 17.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
18. 18.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a coin (d) a cork
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
20. 20.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
21. 21.True or false: a metal key floats on water. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a glass marble (b) an ice-cream stick (c) a pebble (d) a coin
23. 23.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a coin (c) a cork (d) an ice cube
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
25. 25.⚖️ 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 measure it (b) we change it (c) we keep it the same
26. 26.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
27. 27.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) a battery cell
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) small test objects (d) a tub of water
30. 30.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
31. 31.🛟 Which of these floats on water? (a) a cork (b) a glass marble (c) a coin (d) a metal key
32. 32.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
34. 34.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
35. 35.True or false: an ice-cream stick sinks in water. (a) False (b) True
36. 36.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) small test objects (d) a towel for spills
38. 38.⚖️ 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) the shape of the clay (c) whether it floats
39. 39.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) an iron nail (d) a ping-pong ball
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we change it (b) we keep it the same (c) we measure it

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