ES Ch 2 Vocabulary

Front

What is a set of interacting parts forming a complex whole?

Back

System

Front

What is a representation of an object or system?

Back

Model

Front

What is the total energy of motion in the particles of a substance?

Back

Thermal Energy

Front

What is an atom or group of atoms that has a positive or negative charge (gained or lost electrons)?

Back

Ion

Front

What is a possible and testable answer to a scientific question or explanation of what scientists observe in nature?

Back

Scientific Hypothesis

Front

What is the law that states that energy cannot be created or destroyed, only transformed?

Back

Law of Conservation of Energy

Front

What is the term for a substance made of two or more different elements that are chemically bonded?

Back

Compound

Front

What is the process by which a substance changes from a solid to a liquid?

Back

Melting

Front

What is the term for the amount of matter in an object?

Back

Mass

Front

What is the measure of the average kinetic energy of the particles in a substance?

Back

Temperature