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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a battery cell (d) a tub of water
- 2.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a glass marble (c) a ping-pong ball (d) a cork
- 3.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
- 4.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a ball of clay (d) a feather
- 5.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
- 6.🛟 Which of these floats on water? (a) a ping-pong ball (b) a steel spoon (c) a glass marble (d) a coin
- 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a tub of water (d) a towel for spills
- 8.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
- 9.⚖️ 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
- 10.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
- 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a battery cell
- 12.🛟 Does a feather float or sink in water? (a) sinks (b) floats
- 13.🛟 Which of these floats on water? (a) a feather (b) a ball of clay (c) a glass marble (d) a pebble
- 14.⚖️ 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
- 15.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a towel for spills (c) a results table (d) a tub of water
- 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
- 17.⚖️ 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 kind of clay
- 18.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) an ice cube (d) a feather
- 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) turmeric powder
- 20.⚖️ 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
- 21.⚖️ 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 amount of clay (c) whether it floats (d) the kind of clay
- 22.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
- 23.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
- 24.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) turmeric powder (d) small test objects
- 25.⚖️ 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
- 26.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
- 27.⚖️ 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 kind of clay (c) whether it floats (d) the tub of water
- 28.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
- 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a tub of water (d) a towel for spills
- 30.⚖️ 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 change it (c) we measure it
- 31.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
- 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
- 33.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a battery cell (d) a mirror
- 34.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
- 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
- 36.🔍 Which is the odd one out? (a) a glass marble (b) a dry leaf (c) a coin (d) a pebble
- 37.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
- 38.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a pebble (c) a cork (d) a dry leaf
- 39.⚖️ 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 keep it the same (b) we change it (c) we measure it
- 40.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) a feather (d) a steel spoon
Answer key
- a battery cell
- a glass marble
- needed
- a ball of clay
- False
- a ping-pong ball
- a balloon
- not needed
- False
- needed
- a battery cell
- floats
- a feather
- False
- a balloon
- True
- the kind of clay
- an iron nail
- turmeric powder
- True
- whether it floats
- the big log
- not needed
- small test objects
- False
- it sinks
- the shape of the clay
- to keep children safe
- a magnet
- we change it
- False
- not needed
- a towel for spills
- False
- yeast
- a dry leaf
- not needed
- a pebble
- we keep it the same
- a feather
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