Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 891 · 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.True or false: a ping-pong ball sinks in water. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) a cork (b) a feather (c) a ping-pong ball (d) a glass marble
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
5. 5.⚖️ 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
6. 6.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
7. 7.🧺 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) yeast (d) a results table
8. 8.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) a piece of thermocol (d) a pebble
9. 9.⚖️ 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 amount of clay
10. 10.⚖️ 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 measure it (b) we change it (c) we keep it the same
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a tub of water (d) a results table
12. 12.⚖️ 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 kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
13. 13.🔍 Which is the odd one out? (a) a ping-pong ball (b) a piece of thermocol (c) an ice cube (d) a steel spoon
14. 14.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) a dry leaf (d) a coin
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
16. 16.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
17. 17.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) a tub of water
19. 19.🔍 Which is the odd one out? (a) an iron nail (b) a piece of thermocol (c) a dry leaf (d) a feather
20. 20.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) whether it floats (d) the shape of the clay
22. 22.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
25. 25.True or false: a ping-pong ball floats on water. (a) False (b) True
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) small test objects (d) a mirror
27. 27.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
28. 28.True or false: a feather sinks in water. (a) False (b) True
29. 29.True or false: a steel spoon sinks in water. (a) False (b) True
30. 30.🛟 Which of these floats on water? (a) an ice cube (b) a glass marble (c) a pebble (d) an iron nail
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) a magnet (d) turmeric powder
32. 32.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
33. 33.🛟 Which of these sinks in water? (a) an iron nail (b) an ice cube (c) a feather (d) a dry leaf
34. 34.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a towel for spills (d) turmeric powder
36. 36.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
38. 38.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
39. 39.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
40. 40.True or false: a steel spoon floats on water. (a) True (b) False

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