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.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
- 2.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
- 3.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
- 4.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) small test objects (d) a mirror
- 5.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
- 6.⚖️ 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) False (b) True
- 7.True or false: a metal key floats on water. (a) True (b) False
- 8.True or false: a cork sinks in water. (a) True (b) False
- 9.🧺 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 towel for spills (d) a magnet
- 10.⚖️ 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) the tub of water (c) the shape of the clay (d) whether it floats
- 11.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
- 12.🔍 Which is the odd one out? (a) a ball of clay (b) an ice-cream stick (c) a ping-pong ball (d) a cork
- 13.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
- 14.🛟 Does a cork float or sink in water? (a) sinks (b) floats
- 15.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
- 16.⚖️ 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
- 17.⚖️ 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 amount of clay (c) the tub of water (d) the kind of clay
- 18.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a battery cell (d) small test objects
- 19.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) an ice cube (d) a metal key
- 20.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
- 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a results table
- 22.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
- 23.⚖️ 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 measure it (c) we change it
- 24.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a cork (d) a steel spoon
- 25.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
- 26.⚖️ 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 change it (c) we keep it the same
- 27.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
- 28.⚖️ 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) False (b) True
- 29.🛟 Which of these floats on water? (a) a dry leaf (b) a ball of clay (c) a metal key (d) a pebble
- 30.⚖️ 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) True (b) False
- 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.⚖️ 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) False (b) True
- 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a balloon
- 34.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of thermocol (c) a feather (d) an ice cube
- 35.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a magnet (d) a tub of water
- 36.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
- 37.🚢 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
- 38.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a tub of water (d) a results table
- 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a towel for spills (d) a results table
- 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
Answer key
- wipe up spills at once
- True
- False
- small test objects
- ice is less dense
- False
- False
- False
- a magnet
- whether it floats
- floats
- a ball of clay
- True
- floats
- False
- we change it
- the shape of the clay
- a battery cell
- a metal key
- not needed
- yeast
- sinks
- we keep it the same
- a steel spoon
- False
- we keep it the same
- False
- False
- a dry leaf
- True
- False
- True
- a balloon
- a steel spoon
- a tub of water
- False
- its hollow shape
- turmeric powder
- a mirror
- False
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