Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 364 · 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 turns to stone (b) it can float (c) it dissolves (d) it sinks faster
2. 2.True or false: a coin sinks in water. (a) False (b) True
3. 3.🔮 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
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a towel for spills (d) a battery cell
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
7. 7.⚖️ 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
8. 8.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
9. 9.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
10. 10.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) a dry leaf (d) a steel spoon
11. 11.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) yeast
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a mirror (d) turmeric powder
14. 14.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a cork (d) a steel spoon
15. 15.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
16. 16.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
17. 17.True or false: an ice-cream stick sinks in water. (a) True (b) False
18. 18.True or false: a dry leaf floats on water. (a) False (b) True
19. 19.True or false: a dry leaf sinks in water. (a) False (b) True
20. 20.True or false: an ice cube sinks in water. (a) True (b) False
21. 21.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
22. 22.⚖️ 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
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a mirror
24. 24.⚖️ 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
25. 25.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the water (d) the tub
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a balloon
27. 27.🥚 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
28. 28.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
29. 29.⚖️ 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
30. 30.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🧺 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) turmeric powder
33. 33.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
34. 34.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) whether it floats (c) the shape of the clay (d) the amount of clay
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a battery cell
37. 37.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
38. 38.🛟 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 splash everyone (d) to keep children safe
39. 39.True or false: a piece of thermocol sinks in water. (a) False (b) True
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water

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