Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 127 · 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 kind of clay”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
4. 4.⚖️ 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) whether it floats (c) the tub of water (d) the kind of clay
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
6. 6.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
7. 7.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) an empty capped bottle (b) a piece of thermocol (c) a ping-pong ball (d) a pebble
9. 9.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) an iron nail (d) a piece of thermocol
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) yeast (d) small test objects
11. 11.⚖️ 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
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a towel for spills (d) small test objects
14. 14.True or false: a steel spoon floats on water. (a) False (b) True
15. 15.True or false: an ice-cream stick sinks in water. (a) False (b) True
16. 16.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
17. 17.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a pebble (c) a dry leaf (d) a feather
18. 18.🛟 Which of these sinks in water? (a) a steel spoon (b) a ping-pong ball (c) an ice cube (d) an empty capped bottle
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
20. 20.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a coin (d) a dry leaf
21. 21.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a cork (d) a metal key
22. 22.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
23. 23.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the water (d) the tub
24. 24.⚖️ 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
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a tub of water
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a mirror (d) turmeric powder
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
28. 28.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a dry leaf (d) a pebble
29. 29.🛟 Does a feather float or sink in water? (a) sinks (b) floats
30. 30.🔍 Which is the odd one out? (a) an iron nail (b) a feather (c) a piece of thermocol (d) a ping-pong ball
31. 31.⚖️ 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) False (b) True
32. 32.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
33. 33.🛟 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 win a prize (d) to splash everyone
34. 34.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
35. 35.True or false: a piece of thermocol floats on water. (a) False (b) True
36. 36.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
37. 37.True or false: a feather floats on water. (a) True (b) False
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a results table (d) a tub of water
39. 39.🧺 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 magnet (d) a towel for spills
40. 40.⚖️ 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 shape of the clay (b) the kind of clay (c) whether it floats (d) the amount of clay

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