Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 413 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts
4. 4.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
5. 5.⚖️ 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 amount of clay (b) whether it floats (c) the kind of clay (d) the shape of the clay
6. 6.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
7. 7.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) a metal key (d) a piece of thermocol
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) yeast
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
11. 11.True or false: an iron nail sinks in water. (a) False (b) True
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the tub of water (c) the kind of clay (d) whether it floats
13. 13.🔍 Which is the odd one out? (a) an empty capped bottle (b) a coin (c) a piece of thermocol (d) an ice cube
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
15. 15.True or false: a cork sinks in water. (a) False (b) True
16. 16.True or false: a cork floats on water. (a) False (b) True
17. 17.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) turmeric powder
19. 19.🛟 Which of these sinks in water? (a) a glass marble (b) a dry leaf (c) a cork (d) an empty capped bottle
20. 20.True or false: a ping-pong ball floats on water. (a) False (b) True
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) yeast (d) small test objects
23. 23.⚖️ 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) False (b) True
24. 24.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) a ball of clay (b) a cork (c) a metal key (d) a steel spoon
26. 26.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
27. 27.⚖️ 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) True (b) False
28. 28.🛟 Does a coin float or sink in water? (a) floats (b) sinks
29. 29.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a pebble (d) a glass marble
30. 30.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
31. 31.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
32. 32.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
33. 33.True or false: a dry leaf sinks in water. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) an ice-cream stick (b) a pebble (c) a piece of thermocol (d) a dry leaf
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) an ice-cream stick (d) a ball of clay
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) yeast (d) turmeric powder
38. 38.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
40. 40.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) an ice-cream stick (d) a coin

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