Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 148 · 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.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) a battery cell (d) yeast
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a cork (d) an empty capped bottle
4. 4.⚖️ 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
5. 5.🛟 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
6. 6.True or false: a steel spoon floats on water. (a) False (b) True
7. 7.🧊 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
8. 8.🧺 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 tub of water (d) turmeric powder
9. 9.⚖️ 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
10. 10.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
12. 12.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a cork (d) an ice-cream stick
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a results table (d) a tub of water
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
16. 16.🧺 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) a magnet (d) a results table
17. 17.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
18. 18.⚖️ 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) whether it floats (c) the tub of water (d) the shape of the clay
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a results table (d) small test objects
20. 20.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a steel spoon (c) a dry leaf (d) a piece of thermocol
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a tub of water (d) a results table
22. 22.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
23. 23.True or false: a metal key floats on water. (a) False (b) True
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a glass marble (d) an iron nail
26. 26.⚖️ 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 amount of clay (d) the shape of the clay
27. 27.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) an ice cube (d) a steel spoon
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
29. 29.🔍 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
30. 30.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
31. 31.True or false: a coin floats on water. (a) False (b) True
32. 32.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a balloon
34. 34.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a ping-pong ball (d) an empty capped bottle
35. 35.🔮 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
36. 36.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
37. 37.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
38. 38.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
39. 39.True or false: a ping-pong ball sinks in water. (a) False (b) True
40. 40.⚖️ 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

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