1. April 22, 2010
Unit B: Physical Science
Chapter 1 Lesson 1: What Are Elements?
Vocabulary:
element atom proton
period table nucleus neutron
electron
1. element - a substance that cannot be broken down into
other substances by heat, light or electricity.

2. April 22, 2010
Chapter 1: Lesson 1: What are Elements?
Science Background
· Everything that takes up space and has mass
is called matter.
· All matter is made up of just off 100 different
basic substances that are called elements.

3. April 22, 2010
Outline:
· everything that takes up space and has mass
is called matter
· basic substance that make up matter is
called elements
elements cannot be broken down
· elements are the building blocks of matter