Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 807 · 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.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) turmeric powder (d) a tub of water
3. 3.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.True or false: a piece of thermocol sinks in water. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an ice cube (d) a steel spoon
7. 7.🧺 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) a tub of water (d) small test objects
8. 8.True or false: a cork sinks in water. (a) True (b) False
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) a mirror
10. 10.🛟 Which of these floats on water? (a) a glass marble (b) an ice-cream stick (c) a coin (d) a steel spoon
11. 11.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the air above (d) the cork itself
12. 12.⚖️ 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) False (b) True
13. 13.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) an ice cube (d) a metal key
14. 14.⚖️ 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) the kind of clay (c) the shape of the clay (d) whether it floats
15. 15.⚖️ 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
16. 16.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) yeast (d) a results table
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
19. 19.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
20. 20.⚖️ 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
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
22. 22.⚖️ 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 shape of the clay (c) the tub of water
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) turmeric powder (d) a balloon
24. 24.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
25. 25.⚖️ 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
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
27. 27.⚖️ 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
28. 28.True or false: an iron nail floats on water. (a) False (b) True
29. 29.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a steel spoon (d) a cork
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a battery cell (d) a results table
31. 31.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
32. 32.⚖️ 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 change it (b) we measure it (c) we keep it the same
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 measure it (b) we change it (c) we keep it the same
34. 34.🛟 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) run around the tub (d) leave water on the floor
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a ping-pong ball (d) a ball of clay
36. 36.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
37. 37.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
38. 38.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
39. 39.🛟 Which of these floats on water? (a) a piece of thermocol (b) a ball of clay (c) a steel spoon (d) an iron nail
40. 40.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False

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