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