Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 295 · 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 odd one out? (a) an iron nail (b) a coin (c) an ice cube (d) a steel spoon
2. 2.True or false: an empty capped bottle sinks in water. (a) True (b) False
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) the kind of clay (d) whether it floats
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the tub of water
5. 5.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
6. 6.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) a metal key (d) a coin
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) a mirror
10. 10.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a towel for spills (d) a magnet
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) the small pebble (d) neither of them
13. 13.⚖️ 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
14. 14.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a ping-pong ball (d) a coin
15. 15.True or false: a ping-pong ball sinks in water. (a) True (b) False
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) a magnet
17. 17.True or false: a feather sinks in water. (a) False (b) True
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
19. 19.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a battery cell (d) a towel for spills
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
22. 22.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a cork (c) a ball of clay (d) a dry leaf
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a battery cell (d) a tub of water
25. 25.⚖️ 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 change it (c) we keep it the same
26. 26.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
27. 27.True or false: an iron nail sinks in water. (a) False (b) True
28. 28.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
29. 29.🧺 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 balloon (d) a tub of water
30. 30.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
31. 31.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a feather (d) an iron nail
32. 32.⚖️ 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
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: an ice-cream stick floats on water. (a) True (b) False
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
36. 36.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
37. 37.True or false: a glass marble floats on water. (a) False (b) True
38. 38.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
39. 39.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
40. 40.True or false: a pebble sinks in water. (a) True (b) False

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