Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 372 · 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 fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a mirror (d) a battery cell
4. 4.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.True or false: an iron nail sinks in water. (a) False (b) True
7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
10. 10.⚖️ 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
11. 11.🛟 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 splash everyone (d) to keep children safe
12. 12.True or false: a steel spoon floats on water. (a) True (b) False
13. 13.🔍 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
14. 14.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a steel spoon (d) a glass marble
15. 15.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a balloon
17. 17.⚖️ 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 tub of water (b) the shape of the clay (c) whether it floats (d) the kind of clay
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
20. 20.🛟 Which of these floats on water? (a) a metal key (b) a cork (c) a steel spoon (d) a coin
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
22. 22.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the air above (d) the tub
25. 25.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) an ice-cream stick (d) a glass marble
26. 26.True or false: a glass marble floats on water. (a) True (b) False
27. 27.🛟 Does a ping-pong ball 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? True or false: the kind of clay is what we measure. (a) True (b) False
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) small test objects (d) a tub of water
31. 31.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) an empty capped bottle (d) a coin
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) turmeric powder
33. 33.⚖️ 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
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a mirror (d) a towel for spills
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a tub of water (d) a results table
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
38. 38.⚖️ 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 amount of clay (d) the shape of the clay
39. 39.🛟 Which of these floats on water? (a) a glass marble (b) a piece of thermocol (c) a ball of clay (d) a coin
40. 40.🛟 Does a feather float or sink in water? (a) floats (b) sinks

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