Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 404 · 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.True or false: a feather sinks in water. (a) False (b) True
2. 2.True or false: an ice-cream stick sinks in water. (a) True (b) False
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) yeast (d) a tub of water
4. 4.⚖️ 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 shape of the clay (c) the tub of water (d) the amount of clay
5. 5.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a towel for spills (d) a tub of water
7. 7.🛟 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
8. 8.⚖️ 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 tub of water (b) the amount of clay (c) the kind of clay (d) the shape of the clay
9. 9.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.True or false: a piece of thermocol sinks in water. (a) False (b) True
12. 12.⚖️ 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) False (b) True
13. 13.True or false: an ice cube floats on water. (a) True (b) False
14. 14.True or false: a metal key floats on water. (a) True (b) False
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) small test objects (d) a tub of water
16. 16.⚖️ 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 keep it the same (c) we change it
17. 17.🛟 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 splash everyone (d) to keep children safe
18. 18.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a piece of thermocol (d) a glass marble
19. 19.True or false: a ping-pong ball floats on water. (a) True (b) False
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a towel for spills (d) small test objects
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
23. 23.🧺 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) a tub of water (d) turmeric powder
24. 24.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
25. 25.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a pebble (d) an empty capped bottle
26. 26.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
28. 28.True or false: a piece of thermocol floats on water. (a) True (b) False
29. 29.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
30. 30.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a mirror (d) a battery cell
36. 36.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
38. 38.True or false: a pebble sinks in water. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) a pebble (d) a ping-pong ball
40. 40.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it floats (d) it bounces up

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