Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 690 · 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 is the odd one out? (a) a coin (b) a piece of thermocol (c) a ping-pong ball (d) a cork
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
3. 3.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
5. 5.🛟 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
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a magnet (d) a results table
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
8. 8.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
9. 9.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
10. 10.True or false: an ice cube floats on water. (a) True (b) False
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
12. 12.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
13. 13.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
14. 14.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
15. 15.True or false: a pebble sinks in water. (a) False (b) True
16. 16.⚖️ 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 keep it the same (c) we change it
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
18. 18.True or false: a steel spoon floats on water. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) an empty capped bottle (d) a ball of clay
20. 20.⚖️ 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 amount of clay (c) the tub of water (d) the shape of the clay
21. 21.True or false: a steel spoon sinks in water. (a) False (b) True
22. 22.⚖️ 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 measure it (c) we keep it the same
23. 23.🔍 Which is the odd one out? (a) a steel spoon (b) an empty capped bottle (c) a feather (d) an ice cube
24. 24.True or false: an iron nail floats on water. (a) True (b) False
25. 25.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) a mirror
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) small test objects (d) a towel for spills
29. 29.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
30. 30.⚖️ 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) True (b) False
31. 31.⚖️ 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) whether it floats (c) the shape of the clay
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a tub of water (d) a towel for spills
33. 33.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm
34. 34.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
35. 35.True or false: a feather sinks in water. (a) False (b) True
36. 36.🛟 Which of these floats on water? (a) an empty capped bottle (b) a steel spoon (c) an iron nail (d) a pebble
37. 37.🧺 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
38. 38.⚖️ 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 change it (b) we keep it the same (c) we measure it
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a balloon (d) a mirror
40. 40.⚖️ 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

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