Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 588 · 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.True or false: a pebble floats on water. (a) False (b) True
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
3. 3.True or false: a ball of clay sinks in water. (a) False (b) True
4. 4.⚖️ 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
5. 5.🧺 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) turmeric powder (d) a towel for spills
6. 6.True or false: a ping-pong ball floats on water. (a) True (b) False
7. 7.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
9. 9.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
10. 10.🛟 Which of these sinks in water? (a) a cork (b) a ping-pong ball (c) a ball of clay (d) a piece of thermocol
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
12. 12.🧺 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) a battery cell (d) a results table
13. 13.⚖️ 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 shape of the clay (c) the kind of clay (d) whether it floats
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a metal key (d) an empty capped bottle
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a towel for spills (d) small test objects
17. 17.True or false: a results table is needed for the float-or-sink test. (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) True (b) False
19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
20. 20.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
21. 21.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
22. 22.True or false: a piece of thermocol floats on water. (a) True (b) False
23. 23.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) an iron nail (d) a feather
24. 24.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
25. 25.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
26. 26.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a feather (c) an iron nail (d) an ice-cream stick
27. 27.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a steel spoon (d) a piece of thermocol
28. 28.True or false: an ice cube floats on water. (a) False (b) True
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a results table (d) a tub of water
30. 30.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) an empty capped bottle (d) a cork
31. 31.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
32. 32.⚖️ 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 measure it (b) we keep it the same (c) we change it
33. 33.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
36. 36.🔮 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
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a mirror
38. 38.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
39. 39.True or false: a piece of thermocol sinks in water. (a) True (b) False
40. 40.🛟 Does a feather float or sink in water? (a) sinks (b) floats

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