Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 758 · 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 is the odd one out? (a) a feather (b) an empty capped bottle (c) a ball of clay (d) a cork
2. 2.⚖️ 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) the shape of the clay (c) the kind of clay (d) whether it floats
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
4. 4.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
5. 5.⚖️ 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) the shape of the clay (c) whether it floats
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) small test objects (d) a tub of water
7. 7.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
8. 8.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
9. 9.⚖️ 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) False (b) True
10. 10.🔍 Which is the odd one out? (a) a dry leaf (b) a piece of thermocol (c) a ping-pong ball (d) a glass marble
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
12. 12.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) a metal key (d) an iron nail
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) yeast (d) a battery cell
15. 15.True or false: a steel spoon sinks in water. (a) True (b) False
16. 16.True or false: a coin floats on water. (a) False (b) True
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a steel spoon (d) an empty capped bottle
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
20. 20.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
21. 21.⚖️ 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) True (b) False
22. 22.True or false: a feather floats on water. (a) True (b) False
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a balloon (d) turmeric powder
24. 24.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
25. 25.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
27. 27.⚖️ 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 tub of water
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a towel for spills (c) small test objects (d) a tub of water
29. 29.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
30. 30.⚖️ 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 tub of water (c) the shape of the clay (d) whether it floats
31. 31.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
32. 32.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
33. 33.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) a little shaking (d) lots of salt stirred in
34. 34.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
35. 35.🛟 Does a cork float or sink in water? (a) floats (b) sinks
36. 36.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) an iron nail (d) a metal key
38. 38.🔮 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
39. 39.True or false: a coin sinks in water. (a) True (b) False
40. 40.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a ping-pong ball (d) a coin

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