Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 676 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) a tub of water
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a tub of water (d) a magnet
3. 3.⚖️ 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) False (b) True
4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
5. 5.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
8. 8.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
9. 9.🛟 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) run around the tub (d) leave water on the floor
10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
11. 11.🔍 Which is the odd one out? (a) an empty capped bottle (b) a steel spoon (c) an ice-cream stick (d) an ice cube
12. 12.🛟 Which of these floats on water? (a) a dry leaf (b) a ball of clay (c) a glass marble (d) a steel spoon
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
14. 14.🛟 Which of these sinks in water? (a) a glass marble (b) a ping-pong ball (c) an ice cube (d) a piece of thermocol
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
16. 16.⚖️ 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 amount of clay (c) whether it floats (d) the tub of water
17. 17.🔍 Which is the odd one out? (a) an empty capped bottle (b) a dry leaf (c) a cork (d) a glass marble
18. 18.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a results table (d) a towel for spills
20. 20.⚖️ 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
21. 21.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) ice is very cold (d) water is sticky
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) small test objects (d) a results table
25. 25.⚖️ 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
26. 26.🧺 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 results table (d) a magnet
27. 27.True or false: a dry leaf floats on water. (a) True (b) False
28. 28.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
29. 29.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) an ice cube (d) a glass marble
30. 30.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a glass marble (d) a cork
31. 31.⚖️ 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 measure it (c) we keep it the same
32. 32.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) a ball of clay (d) a cork
33. 33.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
34. 34.True or false: a glass marble sinks in water. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) a ball of clay (d) a steel spoon
36. 36.🔮 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
37. 37.🔍 Which is the odd one out? (a) a feather (b) a piece of thermocol (c) a coin (d) an empty capped bottle
38. 38.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
39. 39.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) turmeric powder (d) a battery cell

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