Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 869 · 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.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
2. 2.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) an ice-cream stick (d) a pebble
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a magnet
5. 5.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
6. 6.True or false: a feather sinks in water. (a) False (b) True
7. 7.True or false: a steel spoon floats on water. (a) False (b) True
8. 8.🧺 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) yeast (d) a tub of water
9. 9.⚖️ 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 keep it the same (b) we measure it (c) we change it
10. 10.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
11. 11.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a glass marble (d) a ping-pong ball
12. 12.🔮 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 can float (d) it dissolves
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) a tub of water (d) a towel for spills
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
15. 15.🛟 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
16. 16.🛟 Which of these floats on water? (a) a glass marble (b) a dry leaf (c) a pebble (d) an iron nail
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a tub of water (d) a results table
18. 18.⚖️ 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 shape of the clay (c) the tub of water
19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
20. 20.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ball of clay (c) an empty capped bottle (d) a cork
21. 21.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
22. 22.True or false: a feather floats on water. (a) False (b) True
23. 23.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the tub of water (c) the kind of clay (d) whether it floats
25. 25.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
26. 26.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a results table (d) a battery cell
28. 28.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
29. 29.⚖️ 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
30. 30.⚖️ 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 measure it (b) we change it (c) we keep it the same
31. 31.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) a pebble (d) a dry leaf
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
33. 33.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a balloon (d) small test objects
36. 36.True or false: a coin floats on water. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) an empty capped bottle (b) a metal key (c) a cork (d) an ice cube
38. 38.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a glass marble (d) a dry leaf
39. 39.⚖️ 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) True (b) False
40. 40.⚖️ 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

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