Floating and Sinking Experiment Worksheet

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

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