Floating and Sinking Experiment Worksheet
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.
NameDateTime takenScore ___ / 40
- 1.True or false: a feather floats on water. (a) True (b) False
- 2.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
- 3.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
- 4.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice cube (c) a cork (d) a coin
- 5.⚖️ 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 keep it the same (b) we measure it (c) we change it
- 6.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
- 7.⚖️ 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) whether it floats (c) the amount of clay (d) the tub of water
- 8.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
- 9.True or false: an empty capped bottle floats on water. (a) True (b) False
- 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) small test objects (d) a tub of water
- 11.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
- 12.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
- 13.🧺 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) a mirror
- 14.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
- 15.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) yeast (d) a results table
- 16.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) a tub of water (d) a results table
- 17.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
- 18.🔍 Which is the odd one out? (a) a steel spoon (b) an ice-cream stick (c) a ball of clay (d) a glass marble
- 19.True or false: a ball of clay floats on water. (a) True (b) False
- 20.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
- 21.⚖️ 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
- 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the tub of water
- 23.⚖️ 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 keep it the same (c) we measure it
- 24.True or false: an iron nail floats on water. (a) False (b) True
- 25.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) small test objects (d) a battery cell
- 26.True or false: a cork floats on water. (a) True (b) False
- 27.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a ping-pong ball (d) an iron nail
- 28.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) an ice cube (d) a glass marble
- 29.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a battery cell (d) yeast
- 30.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
- 31.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
- 32.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a balloon (d) a tub of water
- 33.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
- 34.🔍 Which is the odd one out? (a) a steel spoon (b) a cork (c) a metal key (d) a ball of clay
- 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
- 36.⚖️ 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 change it (b) we measure it (c) we keep it the same
- 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a magnet
- 38.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
- 39.True or false: an ice-cream stick floats on water. (a) False (b) True
- 40.🔍 Which is the odd one out? (a) a coin (b) a cork (c) an ice cube (d) an empty capped bottle
Answer key
- True
- floats
- False
- a coin
- we change it
- sinks
- the shape of the clay
- sinks
- True
- yeast
- floats
- not needed
- a mirror
- False
- yeast
- a battery cell
- True
- an ice-cream stick
- False
- wipe up spills at once
- False
- the tub of water
- we measure it
- False
- small test objects
- True
- an iron nail
- a glass marble
- a towel for spills
- not needed
- True
- a balloon
- it can float
- a cork
- to keep children safe
- we keep it the same
- a magnet
- not needed
- True
- a coin
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