Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 409 · 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? What do we do with “the tub of water”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
3. 3.🔍 Which is the odd one out? (a) a ping-pong ball (b) a metal key (c) a glass marble (d) a ball of clay
4. 4.🥚 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
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 splash everyone (d) to hide the corks
6. 6.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the cork itself (d) the water
7. 7.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
8. 8.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
9. 9.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a piece of thermocol (c) a coin (d) a cork
10. 10.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
11. 11.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) a mirror (d) a balloon
13. 13.⚖️ 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
14. 14.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
15. 15.True or false: a metal key floats on water. (a) False (b) True
16. 16.True or false: a dry leaf sinks in water. (a) True (b) False
17. 17.🔮 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
18. 18.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a pebble (d) a feather
19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 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) yeast (d) small test objects
22. 22.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a cork (d) an iron nail
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
24. 24.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) an ice cube (d) a steel spoon
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the amount of clay
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
27. 27.🧺 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 towel for spills (d) a magnet
28. 28.⚖️ 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 keep it the same (b) we measure it (c) we change it
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a results table (d) a magnet
30. 30.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a towel for spills (d) small test objects
32. 32.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
33. 33.🛟 Which of these sinks in water? (a) a dry leaf (b) a glass marble (c) a piece of thermocol (d) an ice cube
34. 34.🛟 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
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a magnet (d) a mirror
36. 36.⚖️ 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 shape of the clay (c) the kind of clay (d) the tub of water
37. 37.⚖️ 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
38. 38.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
39. 39.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
40. 40.True or false: a ping-pong ball floats on water. (a) False (b) True

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