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