Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 833 · 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.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
3. 3.🛟 Which of these floats on water? (a) a steel spoon (b) a dry leaf (c) a pebble (d) a glass marble
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a results table (d) small test objects
6. 6.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
7. 7.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice cube (c) a metal key (d) a ping-pong ball
8. 8.⚖️ 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) True (b) False
9. 9.⚖️ 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 kind of clay (c) the amount of clay (d) whether it floats
10. 10.🛟 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
11. 11.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) a few ice cubes (d) more plain water
12. 12.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) a piece of thermocol (d) an ice cube
13. 13.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
14. 14.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
15. 15.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
16. 16.⚖️ 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
17. 17.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) yeast
19. 19.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
20. 20.⚖️ 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 measure it (c) we change it
21. 21.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
22. 22.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a balloon (d) a mirror
24. 24.🛟 Which of these floats on water? (a) a ball of clay (b) an ice cube (c) a pebble (d) a steel spoon
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts
26. 26.⚖️ 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
27. 27.🛟 Does a feather float or sink in water? (a) floats (b) sinks
28. 28.⚖️ 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
29. 29.True or false: a steel spoon floats on water. (a) True (b) False
30. 30.⚖️ 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 keep it the same (b) we change it (c) we measure it
31. 31.⚖️ 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
32. 32.⚖️ 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 shape of the clay (c) whether it floats (d) the tub of water
33. 33.True or false: an ice cube floats on water. (a) False (b) True
34. 34.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a battery cell (d) small test objects
36. 36.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
38. 38.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
39. 39.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder

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