Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 396 · 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 floats on water? (a) a coin (b) a steel spoon (c) an ice cube (d) a ball of clay
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 measure it (b) we change it (c) we keep it the same
3. 3.🛟 Does a coin float or sink in water? (a) floats (b) sinks
4. 4.🧺 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 balloon (d) small test objects
5. 5.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a pebble (d) an ice-cream stick
6. 6.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
7. 7.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
8. 8.🧺 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) yeast
9. 9.🔍 Which is the odd one out? (a) a metal key (b) a piece of thermocol (c) a cork (d) a ping-pong ball
10. 10.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
11. 11.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
13. 13.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an iron nail (d) an empty capped bottle
14. 14.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
15. 15.⚖️ 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 tub of water
16. 16.True or false: a cork floats on water. (a) True (b) False
17. 17.True or false: an ice-cream stick sinks in water. (a) True (b) False
18. 18.⚖️ 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
19. 19.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
20. 20.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a pebble (d) a metal key
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a magnet (d) a balloon
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
24. 24.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a coin (d) a dry leaf
25. 25.🔮 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 turns to stone (d) it can float
26. 26.⚖️ 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
27. 27.🔍 Which is the odd one out? (a) a feather (b) a ball of clay (c) an empty capped bottle (d) a piece of thermocol
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) yeast (d) a balloon
29. 29.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
30. 30.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
31. 31.⚖️ 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
32. 32.⚖️ 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 kind of clay (b) the amount of clay (c) the tub of water (d) the shape of the clay
33. 33.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a glass marble (d) a cork
35. 35.⚖️ 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
36. 36.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) a battery cell
38. 38.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) a ping-pong ball (d) a coin
39. 39.🛟 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
40. 40.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats

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