Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 360 · 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 keep children safe (c) to hide the corks (d) to splash everyone
2. 2.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
3. 3.⚖️ 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 tub of water (c) the shape of the clay (d) whether it floats
4. 4.🛟 Which of these floats on water? (a) a ball of clay (b) a feather (c) an iron nail (d) a metal key
5. 5.True or false: a coin floats on water. (a) False (b) True
6. 6.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) an ice cube (d) a ball of clay
7. 7.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
8. 8.🔮 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
9. 9.⚖️ 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) whether it floats (c) the tub of water
10. 10.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
11. 11.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
12. 12.🛟 Does a cork float or sink in water? (a) sinks (b) floats
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
16. 16.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
17. 17.⚖️ 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 measure it (b) we change it (c) we keep it the same
18. 18.True or false: a ball of clay floats on water. (a) True (b) False
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
20. 20.⚖️ 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) whether it floats (c) the amount of clay
21. 21.🧺 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 magnet (d) small test objects
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) small test objects (d) a tub of water
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a balloon (c) a magnet (d) turmeric powder
24. 24.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
25. 25.🔍 Which is the odd one out? (a) an empty capped bottle (b) a piece of thermocol (c) a coin (d) a dry leaf
26. 26.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the cork itself (d) the air above
27. 27.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
28. 28.🔍 Which is the odd one out? (a) a steel spoon (b) a feather (c) a ping-pong ball (d) an ice cube
29. 29.🔍 Which is the odd one out? (a) a metal key (b) a pebble (c) a ball of clay (d) an ice-cream stick
30. 30.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a pebble (d) a dry leaf
31. 31.🛟 Does a pebble 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? What do we do with “the amount of clay”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) yeast (d) a towel for spills
34. 34.🛟 Does a coin float or sink in water? (a) floats (b) sinks
35. 35.🛟 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
36. 36.True or false: a metal key floats on water. (a) True (b) False
37. 37.⚖️ 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 shape of the clay (c) whether it floats (d) the tub of water
38. 38.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
39. 39.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
40. 40.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats

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