Physical Science Unit 2 Vocabulary

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conductorA material that conducts heat wellCoolingNegative Specific Heat Valuepositive buoyancyThe buoyant force is greater than the force of the object, and the object floats.negative buoyancyThe force of the object is greater than the buoyant force, and the object sinks.neutrally buoyantbuoyant forces are equal to weight of object. It does not sink nor floatHot Air Balloons Fly....because the less dense hot air (inside the balloon) floats on the more dense cold air.If objects have the same volume, the more dense object will have alarger massif objects have the same mass, the less dense object will have alarger volumeGasThe least dense state of matterSolidThe most dense state of matterswim bladderan air-filled sac near the spinal column in many fishes that helps maintain buoyancybuoyant force is...equal to the weight of the displaced waterWaterThis substance can absorb or release large amounts of heat with relatively small changes to its own temperature.To Measure Pressure...Measure Particle Collisions with Walls of Container