Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 721 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
2. 2.🛟 Does a cork float or sink in water? (a) floats (b) sinks
3. 3.⚖️ 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) the amount of clay (c) the tub of water (d) whether it floats
4. 4.🔍 Which is the odd one out? (a) an iron nail (b) a pebble (c) a piece of thermocol (d) a steel spoon
5. 5.🛟 Which of these floats on water? (a) a dry leaf (b) a ball of clay (c) a metal key (d) an iron nail
6. 6.⚖️ 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 measure it (b) we change it (c) we keep it the same
7. 7.🛟 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
8. 8.True or false: an ice cube sinks in water. (a) False (b) True
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it dissolves (d) it can float
10. 10.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) small test objects (d) a results table
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a towel for spills (d) a mirror
13. 13.🛟 Does a coin float or sink in water? (a) floats (b) sinks
14. 14.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a piece of thermocol (d) a pebble
15. 15.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
16. 16.True or false: a coin sinks in water. (a) True (b) False
17. 17.🛟 Which of these floats on water? (a) an iron nail (b) a ping-pong ball (c) a coin (d) a steel spoon
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
19. 19.⚖️ 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
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
21. 21.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ball of clay (c) an ice cube (d) a dry leaf
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) a tub of water (d) small test objects
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a battery cell
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.⚖️ 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 keep it the same (b) we change it (c) we measure it
26. 26.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) yeast (d) a towel for spills
28. 28.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts
29. 29.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
30. 30.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a ball of clay (d) a feather
31. 31.⚖️ 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
32. 32.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
33. 33.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
36. 36.True or false: a dry leaf sinks in water. (a) False (b) True
37. 37.⚖️ 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) False (b) True
38. 38.🧺 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
39. 39.True or false: a pebble floats on water. (a) False (b) True
40. 40.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True

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