Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 106 · 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.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
2. 2.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) an iron nail (d) a pebble
3. 3.⚖️ 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
4. 4.True or false: an ice cube floats on water. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) a ping-pong ball (b) a steel spoon (c) a cork (d) a dry leaf
6. 6.🛟 Which of these floats on water? (a) a ball of clay (b) an ice cube (c) a glass marble (d) a pebble
7. 7.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a battery cell (c) yeast (d) a balloon
9. 9.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
10. 10.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
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 amount of clay (b) the tub of water (c) whether it floats (d) the shape of the clay
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a tub of water
13. 13.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a steel spoon (d) an ice-cream stick
15. 15.🛟 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
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 battery cell (c) small test objects (d) a tub of water
17. 17.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a balloon (d) small test objects
19. 19.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
20. 20.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) both of them (d) the small pebble
21. 21.⚖️ 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 measure it (b) we change it (c) we keep it the same
22. 22.⚖️ 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 change it (c) we measure it
23. 23.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) a feather (d) a coin
24. 24.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
25. 25.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) an ice cube (d) a cork
26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
27. 27.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a steel spoon (d) a cork
28. 28.🔍 Which is the odd one out? (a) an ice-cream stick (b) a pebble (c) an iron nail (d) a coin
29. 29.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
30. 30.🛟 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 splash everyone (d) to keep children safe
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) whether it floats (d) the shape of the clay
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) a towel for spills (d) a mirror
33. 33.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a piece of thermocol (d) a coin
34. 34.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a results table (d) a tub of water
36. 36.True or false: a ping-pong ball sinks in water. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a towel for spills (d) a tub of water
38. 38.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) a magnet
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a towel for spills (d) a tub of water

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