Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 513 · 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.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) small test objects (d) a tub of water
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) the shape of the clay (c) whether it floats
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a battery cell (d) a results table
6. 6.🛟 Which of these sinks in water? (a) an ice cube (b) a ball of clay (c) an ice-cream stick (d) a ping-pong ball
7. 7.⚖️ 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
8. 8.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
10. 10.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
11. 11.🛟 Does a cork float or sink in water? (a) floats (b) sinks
12. 12.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a steel spoon (d) a dry leaf
13. 13.True or false: a pebble sinks in water. (a) False (b) True
14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
15. 15.⚖️ 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 tub of water (b) the amount of clay (c) the shape of the clay (d) the kind of clay
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a magnet (d) a towel for spills
18. 18.🧺 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) small test objects (d) a magnet
19. 19.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) a pebble (d) a feather
22. 22.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) an empty capped bottle (d) a metal key
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) an empty capped bottle (d) a coin
24. 24.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
25. 25.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
26. 26.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
27. 27.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a ball of clay (d) an ice-cream stick
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a results table (d) small test objects
29. 29.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
30. 30.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
31. 31.🧺 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 tub of water (d) turmeric powder
32. 32.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
33. 33.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
34. 34.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
35. 35.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a magnet (d) a battery cell
37. 37.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
39. 39.🧺 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 tub of water (d) a mirror
40. 40.True or false: an iron nail floats on water. (a) False (b) True

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