Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 810 · 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.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
2. 2.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
3. 3.⚖️ 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) False (b) True
4. 4.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a steel spoon (d) a coin
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
7. 7.True or false: a cork floats on water. (a) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) the amount of clay (d) whether it floats
9. 9.🛟 Which of these floats on water? (a) a steel spoon (b) a piece of thermocol (c) a ball of clay (d) an iron nail
10. 10.⚖️ 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
11. 11.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
12. 12.🛟 Does a cork float or sink in water? (a) sinks (b) floats
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a mirror (d) turmeric powder
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
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? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the kind of clay
17. 17.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) an ice cube (d) a pebble
18. 18.🛟 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 hide the corks (d) to splash everyone
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
20. 20.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) a battery cell
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
23. 23.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
24. 24.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a mirror (d) a balloon
27. 27.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it floats (d) it bounces up
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a tub of water (d) a results table
29. 29.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) a pebble (d) a coin
30. 30.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a ball of clay (c) an ice-cream stick (d) an ice cube
33. 33.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
34. 34.True or false: a ping-pong ball sinks in water. (a) False (b) True
35. 35.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the water (d) the cork itself
36. 36.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an iron nail (d) a cork
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) small test objects
38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a balloon (d) a results table
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) an ice-cream stick (d) a piece of thermocol

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