Timothy J. Chiaverini
Mass: The measure of the quantity of matter in an object.
Volume: The measure of space, such as the capacity of a container.
Density: The mass per unit volume of a substance.
Buoyancy: The force with which a more dense fluid pushes a less dense substance upward.
Weight: The force with which gravity pulls on a quantity of matter.
Convection: The transfer of energy by the movement of fluids with different temperatures.
Convection Current: The flow of a fluid due to thermal expansion followed by cooling and contraction.
Calorie: The amount of heat required to change the temperature of 1 gram of water by 1 degree Celsius.
Archimedes: The Greek philosopher who discovered the relationship buoyancy and displaced liquid.
Gravity: The force of attraction between two particles of matter because of their mass.
Global Warming: An increase in earth's temperature due to an increase in greenhouse gases.
Fossil Fuels: Any fuels formed from the remains of ancient plant and animal life.
Heat: The transfer of energy from the particles of one object to those of another object due to a temperature difference.