Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 258 · 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.⚖️ 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 shape of the clay (d) the kind of clay
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
3. 3.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) turmeric powder (d) a balloon
5. 5.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
6. 6.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
7. 7.🛟 Which of these floats on water? (a) a metal key (b) an ice cube (c) a ball of clay (d) a coin
8. 8.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
10. 10.🧺 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 battery cell (d) a results table
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
14. 14.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the kind of clay (c) the shape of the clay
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) small test objects (d) a towel for spills
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 shape of the clay (b) the kind of clay (c) the tub of water (d) whether it floats
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
20. 20.🔍 Which is the odd one out? (a) a steel spoon (b) a cork (c) a feather (d) a ping-pong ball
21. 21.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) an iron nail (d) a dry leaf
22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
23. 23.True or false: a cork sinks in water. (a) False (b) True
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
27. 27.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) a ball of clay (d) a ping-pong ball
28. 28.🧺 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 magnet (d) small test objects
29. 29.True or false: a feather sinks in water. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) a piece of thermocol (d) a steel spoon
31. 31.True or false: a cork floats on water. (a) True (b) False
32. 32.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
33. 33.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
34. 34.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) leave water on the floor (d) run around the tub
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a tub of water (d) a mirror
37. 37.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
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 measure it (b) we change it (c) we keep it the same
39. 39.⚖️ 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) False (b) True
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a results table (d) a towel for spills

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