Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 341 · 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.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
2. 2.True or false: a metal key sinks in water. (a) False (b) True
3. 3.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
4. 4.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a magnet (d) a battery cell
6. 6.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a steel spoon (d) an empty capped bottle
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
8. 8.🧺 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) a mirror (d) a towel for spills
9. 9.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
11. 11.⚖️ 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) whether it floats (c) the shape of the clay (d) the amount of clay
12. 12.True or false: a feather sinks in water. (a) False (b) True
13. 13.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) small test objects (d) a towel for spills
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
17. 17.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an ice cube (d) a ball of clay
18. 18.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
22. 22.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an empty capped bottle (c) a coin (d) a feather
23. 23.⚖️ 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
24. 24.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) small test objects (d) a results table
26. 26.🛟 Does a cork float or sink in water? (a) sinks (b) floats
27. 27.True or false: a ping-pong ball floats on water. (a) True (b) False
28. 28.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ 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
30. 30.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
31. 31.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
33. 33.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a ball of clay (d) an ice cube
34. 34.⚖️ 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
35. 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to splash everyone (d) to hide the corks
36. 36.True or false: a ball of clay sinks in water. (a) False (b) True
37. 37.🛟 Which of these floats on water? (a) a coin (b) a ping-pong ball (c) an iron nail (d) a ball of clay
38. 38.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
39. 39.🛟 Which of these sinks in water? (a) a pebble (b) an ice cube (c) a ping-pong ball (d) a cork
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False

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