Semester 1 Final ES Chapter 2 review

Front

What is the best definition of science?

Back

A broad field of study focused on discovering how nature works.

Front

When matter undergoes physical changes, does the chemical composition also change?

Back

False

Front

What does the law of conservation of matter state?

Back

Atoms cannot be created or destroyed.

Front

Must a scientific hypothesis be testable?

Back

True

Front

What is a subatomic particle with no electrical charge?

Back

Neutron.

Front

What is a hypothesis in scientific terms?

Back

A testable prediction about the relationship between variables.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an example of a physical change?

Back

Melting ice.

Front

What is an example of a chemical change?

Back

Burning wood.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.