Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 971 · 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.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) small test objects (d) a towel for spills
5. 5.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
6. 6.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
7. 7.True or false: an ice-cream stick floats on water. (a) True (b) False
8. 8.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
9. 9.🛟 Which of these sinks in water? (a) a glass marble (b) a cork (c) an ice cube (d) an ice-cream stick
10. 10.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
11. 11.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) a ball of clay (d) a feather
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a mirror (d) a battery cell
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
14. 14.🔮 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 turns to stone (d) it dissolves
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
16. 16.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
17. 17.⚖️ 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 change it (b) we keep it the same (c) we measure it
18. 18.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) an ice-cream stick (d) a coin
19. 19.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a metal key (d) a cork
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 measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a battery cell (c) turmeric powder (d) a mirror
22. 22.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a magnet (d) a towel for spills
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the shape of the clay (d) the kind of clay
25. 25.🔍 Which is the odd one out? (a) a metal key (b) a pebble (c) a steel spoon (d) a cork
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a towel for spills (d) a results table
27. 27.True or false: a ball of clay sinks in water. (a) True (b) False
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a magnet (d) a tub of water
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) small test objects (d) a results table
31. 31.🛟 Does a feather float or sink in water? (a) sinks (b) floats
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) the shape of the clay (c) whether it floats
33. 33.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
34. 34.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a piece of thermocol (d) a coin
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
36. 36.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an iron nail (d) a cork
39. 39.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
40. 40.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves

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