Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 934 · 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) an empty capped bottle (b) an ice-cream stick (c) a metal key (d) a cork
2. 2.🛟 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
3. 3.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a ping-pong ball (d) an ice-cream stick
4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
5. 5.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
6. 6.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) turmeric powder
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a tub of water (d) a results table
10. 10.🔍 Which is the odd one out? (a) an ice-cream stick (b) a feather (c) a dry leaf (d) an iron nail
11. 11.True or false: an ice cube floats on water. (a) False (b) True
12. 12.🛟 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 win a prize (d) to hide the corks
13. 13.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an iron nail (d) an ice-cream stick
14. 14.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a magnet (d) a results table
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.⚖️ 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 keep it the same (b) we change it (c) we measure it
18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
19. 19.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the shape of the clay (d) the tub of water
22. 22.⚖️ 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 tub of water (c) whether it floats
23. 23.🛟 Does a feather float or sink in water? (a) floats (b) sinks
24. 24.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a magnet (d) a towel for spills
26. 26.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) small test objects (d) a tub of water
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
29. 29.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) an ice-cream stick (d) a coin
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) small test objects (d) a results table
31. 31.⚖️ 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
32. 32.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
33. 33.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
34. 34.⚖️ 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
35. 35.🧺 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) a magnet (d) a results table
36. 36.True or false: a dry leaf floats on water. (a) False (b) True
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) yeast (d) a battery cell
38. 38.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
39. 39.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
40. 40.🛟 Which of these floats on water? (a) a glass marble (b) an empty capped bottle (c) an iron nail (d) a pebble

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