Matter and Energy (PT)

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is energy?

Back

Energy is the ability to do work or cause change.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a chemical change?

Back

A chemical change occurs when substances combine or break apart to form new substances.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H₂O.

Front

How many atoms are in one molecule of glucose (C₆H₁₂O₆)?

Back

There are 24 atoms in one molecule of glucose (6 Carbon, 12 Hydrogen, 6 Oxygen).

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.