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interface

the point at which two liquids meet

vial

very small test tube

anomaly

something unexpected

buoyancy

an object's ability to float (depends on mass/volume of an object)

density

amount of mass per unit volume

ballast

an object inside of another object to give it stability

submerged volume

amount of water displaced

characteristic property

a property that does not change regardless of the amount

top liquid

mineral oil

water

bottom liquid

vial A

water

vial B

salt water

vial C

rubbing alcohol

displacement cup

wide, mouthed cup with a spout on the side

displaced water

the change in water level in a graduated cylinder when an object is placed in it

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