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