Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 965 · 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 is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
3. 3.True or false: an ice-cream stick floats on water. (a) False (b) True
4. 4.⚖️ 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 keep it the same (b) we measure it (c) we change it
5. 5.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a pebble (c) a piece of thermocol (d) an ice cube
6. 6.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a ball of clay (d) an ice-cream stick
7. 7.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
10. 10.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
11. 11.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) more plain water (d) a little shaking
12. 12.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
13. 13.🔍 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
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a towel for spills (d) a mirror
16. 16.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a cork (d) a feather
17. 17.True or false: a ping-pong ball floats on water. (a) False (b) True
18. 18.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
19. 19.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
20. 20.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) whether it floats (d) the amount of clay
24. 24.🧺 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) a battery cell
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
26. 26.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a results table
28. 28.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a towel for spills (d) a tub of water
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
31. 31.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
32. 32.⚖️ 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 keep it the same (c) we measure it
33. 33.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a tub of water (d) a magnet
35. 35.🔍 Which is the odd one out? (a) an empty capped bottle (b) a dry leaf (c) a steel spoon (d) an ice cube
36. 36.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a tub of water (d) a towel for spills
40. 40.🛟 Which of these floats on water? (a) a ball of clay (b) a metal key (c) a glass marble (d) a piece of thermocol

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