Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 956 · 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.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a magnet
3. 3.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
4. 4.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) an empty capped bottle (d) a pebble
5. 5.True or false: yeast is 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) small test objects (b) a results table (c) a mirror (d) a towel for spills
7. 7.🛟 Does a feather float or sink in water? (a) sinks (b) floats
8. 8.⚖️ 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 change it (c) we measure it
9. 9.⚖️ 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) False (b) True
10. 10.⚖️ 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
11. 11.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) a feather (d) a pebble
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) a magnet (d) a towel for spills
14. 14.🧺 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) a battery cell (d) a tub of water
15. 15.True or false: a steel spoon sinks in water. (a) False (b) True
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a results table (d) a magnet
17. 17.🧺 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) small test objects (d) yeast
18. 18.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
20. 20.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Does a coin float or sink in water? (a) floats (b) sinks
22. 22.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
23. 23.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
24. 24.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
25. 25.True or false: a feather sinks in water. (a) True (b) False
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
28. 28.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a metal key (d) an ice cube
29. 29.⚖️ 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 shape of the clay (c) the tub of water (d) whether it floats
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
31. 31.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
33. 33.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
34. 34.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
36. 36.⚖️ 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
37. 37.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
38. 38.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
39. 39.True or false: a piece of thermocol floats on water. (a) False (b) True
40. 40.🔮 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

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