Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 815 · 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 keep children safe (d) to hide the corks
2. 2.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Does a cork float or sink in water? (a) sinks (b) floats
4. 4.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
5. 5.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
6. 6.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
7. 7.True or false: an empty capped bottle floats on water. (a) True (b) False
8. 8.True or false: an ice-cream stick sinks in water. (a) True (b) False
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a towel for spills (d) turmeric powder
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 what we measure. (a) False (b) True
11. 11.⚖️ 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
12. 12.🛟 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
13. 13.🔍 Which is the odd one out? (a) a metal key (b) a feather (c) a coin (d) a pebble
14. 14.🛟 Which of these floats on water? (a) a coin (b) an empty capped bottle (c) a glass marble (d) a ball of clay
15. 15.🛟 Which of these sinks in water? (a) an ice cube (b) a piece of thermocol (c) a feather (d) a metal key
16. 16.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) an ice-cream stick (d) a steel spoon
17. 17.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
18. 18.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
19. 19.🧺 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
20. 20.⚖️ 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
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
22. 22.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the kind of clay (c) the amount of clay (d) whether it floats
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.True or false: a metal key sinks in water. (a) False (b) True
26. 26.True or false: a ball of clay sinks in water. (a) False (b) True
27. 27.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
30. 30.🛟 Does a feather float or sink in water? (a) sinks (b) floats
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
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 change it (b) we keep it the same (c) we measure it
33. 33.True or false: a cork sinks in water. (a) False (b) True
34. 34.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
35. 35.⚖️ 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
36. 36.True or false: a pebble floats on water. (a) False (b) True
37. 37.🧺 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) yeast (d) a results table
38. 38.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
39. 39.⚖️ 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) the tub of water
40. 40.🔍 Which is the odd one out? (a) a glass marble (b) an ice-cream stick (c) a feather (d) an ice cube

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