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