Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 118 · 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: yeast is needed for the float-or-sink test. (a) False (b) True
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
4. 4.⚖️ 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
5. 5.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a coin (d) a cork
6. 6.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
7. 7.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which of these floats on water? (a) a pebble (b) a glass marble (c) a piece of thermocol (d) a steel spoon
9. 9.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
10. 10.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a metal key (d) an empty capped bottle
11. 11.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) turmeric powder (d) a tub of water
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
15. 15.🔍 Which is the odd one out? (a) an ice cube (b) a metal key (c) a pebble (d) a steel spoon
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) a battery cell
17. 17.⚖️ 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 change it (b) we keep it the same (c) we measure it
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) a results table (d) a towel for spills
19. 19.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) an ice-cream stick (d) a glass marble
20. 20.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
21. 21.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
22. 22.True or false: a pebble sinks in water. (a) True (b) False
23. 23.⚖️ 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
24. 24.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) ice is very cold (d) water is sticky
25. 25.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a mirror
27. 27.🛟 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
28. 28.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
29. 29.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a feather (d) an iron nail
30. 30.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
31. 31.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
33. 33.True or false: an ice-cream stick floats on water. (a) True (b) False
34. 34.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
36. 36.⚖️ 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) True (b) False
37. 37.⚖️ 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 kind of clay (c) whether it floats
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
40. 40.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True

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