Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 131 · 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 can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
2. 2.True or false: an ice-cream stick floats on water. (a) False (b) True
3. 3.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
5. 5.⚖️ 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 measure it (c) we keep it the same
6. 6.True or false: a piece of thermocol sinks in water. (a) False (b) True
7. 7.True or false: a coin sinks in water. (a) False (b) True
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a tub of water (d) yeast
9. 9.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a results table (d) a towel for spills
11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
12. 12.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) small test objects
14. 14.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) an iron nail (d) a cork
15. 15.⚖️ 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
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (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 tub of water (b) a battery cell (c) a results table (d) a towel for spills
18. 18.🔍 Which is the odd one out? (a) a feather (b) a coin (c) a pebble (d) a ball of clay
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
20. 20.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) a cork (d) a glass marble
21. 21.🛟 Which of these sinks in water? (a) an iron nail (b) a piece of thermocol (c) an empty capped bottle (d) a dry leaf
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
23. 23.⚖️ 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 shape of the clay (b) whether it floats (c) the kind of clay (d) the tub of water
24. 24.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
25. 25.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
28. 28.🧺 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) small test objects
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a results table (d) a towel for spills
30. 30.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a battery cell
33. 33.True or false: a glass marble sinks in water. (a) True (b) False
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) a balloon
35. 35.True or false: an iron nail sinks in water. (a) False (b) True
36. 36.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: an ice-cream stick sinks in water. (a) True (b) False
38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.⚖️ 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) True (b) False

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