Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 55 · 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 battery cell for the float-or-sink test? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a results table (c) a tub of water (d) small test objects
3. 3.🛟 Which of these floats on water? (a) a ping-pong ball (b) a ball of clay (c) a pebble (d) a coin
4. 4.True or false: a ball of clay floats on water. (a) False (b) True
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) small test objects
6. 6.⚖️ 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 change it (b) we keep it the same (c) we measure it
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? True or false: the kind of clay is what we measure. (a) False (b) True
9. 9.True or false: a metal key sinks in water. (a) True (b) False
10. 10.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
11. 11.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
12. 12.🔍 Which is the odd one out? (a) an ice-cream stick (b) a glass marble (c) a metal key (d) an iron nail
13. 13.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
14. 14.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a ping-pong ball (d) a pebble
15. 15.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
16. 16.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a battery cell (d) small test objects
18. 18.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
19. 19.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a glass marble (d) an ice cube
20. 20.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a tub of water (d) a battery cell
22. 22.True or false: a ball of clay sinks in water. (a) True (b) False
23. 23.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
24. 24.⚖️ 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 measure it (c) we change it
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
26. 26.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
27. 27.⚖️ 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
28. 28.🔍 Which is the odd one out? (a) a dry leaf (b) a piece of thermocol (c) a pebble (d) an empty capped bottle
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
31. 31.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a tub of water (d) small test objects
33. 33.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
34. 34.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
35. 35.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) a coin (d) an ice cube
36. 36.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
37. 37.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 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 tub of water (d) a magnet
40. 40.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves

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