Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 320 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
2. 2.True or false: a ping-pong ball sinks in water. (a) False (b) True
3. 3.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
4. 4.🛟 Which of these floats on water? (a) a piece of thermocol (b) a steel spoon (c) an iron nail (d) a metal key
5. 5.⚖️ 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) True (b) False
6. 6.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) a cork (d) an iron nail
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) turmeric powder (d) a towel for spills
9. 9.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a glass marble (d) an ice-cream stick
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a mirror (d) yeast
11. 11.⚖️ 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
12. 12.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a feather (c) a piece of thermocol (d) an iron nail
13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
14. 14.🔍 Which is the odd one out? (a) an ice cube (b) a metal key (c) a cork (d) a ping-pong ball
15. 15.🛟 Which of these sinks in water? (a) a dry leaf (b) an empty capped bottle (c) a glass marble (d) a ping-pong ball
16. 16.🚢 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
17. 17.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) a dry leaf (d) a pebble
18. 18.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
19. 19.🔮 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
20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
21. 21.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
22. 22.True or false: a pebble floats on water. (a) False (b) True
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a mirror (d) a tub of water
24. 24.🛟 Which of these sinks in water? (a) a coin (b) an ice-cream stick (c) a piece of thermocol (d) a cork
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a magnet (d) a tub of water
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) an ice cube (c) a coin (d) an iron nail
27. 27.True or false: an ice-cream stick floats on water. (a) False (b) True
28. 28.⚖️ 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 shape of the clay (c) whether it floats (d) the amount of clay
29. 29.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
30. 30.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
31. 31.⚖️ 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 tub of water (c) the amount of clay (d) the shape of the clay
32. 32.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
33. 33.🔮 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
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) small test objects (d) a towel for spills
35. 35.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
36. 36.⚖️ 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
37. 37.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
38. 38.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a tub of water (d) a towel for spills
40. 40.🔍 Which is the odd one out? (a) a cork (b) a coin (c) a metal key (d) an iron nail

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