Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 700 · 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.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) small test objects (d) yeast
2. 2.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) a feather (d) an empty capped bottle
3. 3.True or false: an iron nail sinks in water. (a) True (b) False
4. 4.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) its hollow shape (d) it has a magnet
7. 7.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
8. 8.⚖️ 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
9. 9.🛟 Which of these floats on water? (a) a glass marble (b) a metal key (c) a pebble (d) an ice cube
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a piece of thermocol (d) a ping-pong ball
12. 12.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
14. 14.🛟 Which of these floats on water? (a) a piece of thermocol (b) a glass marble (c) an iron nail (d) a metal key
15. 15.⚖️ 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
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a towel for spills (d) a magnet
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a battery cell
18. 18.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to splash everyone (d) to hide the corks
21. 21.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
22. 22.True or false: a glass marble sinks in water. (a) False (b) True
23. 23.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a tub of water (d) yeast
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) yeast
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) a mirror
27. 27.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ball of clay (c) a steel spoon (d) a glass marble
28. 28.⚖️ 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 measure it (b) we keep it the same (c) we change it
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
30. 30.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
31. 31.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
32. 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
33. 33.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
35. 35.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
36. 36.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a metal key (b) a piece of thermocol (c) a cork (d) a ping-pong ball
38. 38.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) an ice cube (d) an ice-cream stick
39. 39.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
40. 40.True or false: an ice-cream stick sinks in water. (a) True (b) False

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