1. Atoms and Elements

2. Objective
We will explain that atoms make up elements and identify the parts of an atom.
What are we doing today?

3. Prior Knowledge
We know that matter is anything that has mass and takes up space.
Mass is the amount of material in an object.
TPS-WB
List 5 things that consist of matter
Knowing about matter is important because all matter is made of elements. Today we are going to learn about atoms and elements.

4. Concept Atoms: are the tiny building blocks of all things-matter
Smallest particle of an element that still has the properties of that element
Oxygen

5. Concept Structure of an Atom:
Nucleus: 2 kinds of particles (tiny parts) in the center
Protons – small positively charged particles
Neutrons – small particles with no charge
Electrons – outer ring of negatively charged particles
Oxygen
TPS: The difference between protons and neutrons is ________________.
TPS: The differences between the particles in the nucleus and electrons are ______.

6. Concept: Parts of an Atom- 6 C
Carbon -
Nucleus
Protons
Neutrons + + + + - - + +
Electrons - -
TPS: The particles that make up the nucleus are different because ____________:
The particles on the outer rings are _________ and have ________________.

7. Concept
Elements:
Substance that can not be broken down any further - Pure
Elements are made of only 1 kind of atom
Two or more different elements that are chemically joined make a compound
Water is made up of 2 elements
Hydrogen Atom
Oxygen Atom
Water Molecule
TPS: Oxygen is an example of an element because ________________.
TPS: Water, H2O is not an example of an element because ________________.

8. Skill Development: Teacher Model and Guided Practice
Steps:
Read paragraph
Refer to question
Underline evidence from text
Answer question
Please open your Science Workbook to page 186:
Teacher Model page 186
Guided Practice page 187
Independent Practice pages

9. Relevance Learning about atoms and elements is important because:
We all drink water and we want to know what it is made from.
Atoms make up all matter and they are the smallest particles of elements.
Your own reason.
TPS: What is the most relevant reason for you?

10. Concept Closure What are elements? What is an atom?
What makes up an atom?
Draw a model
Label the particles

11. Concept Closure What are elements? What is an atom?
A pure substance that cannot be broken apart.
What is an atom?
An atom is a tiny building block of matter. The smallest particle of an element.
What makes up an atom?
Draw a model
Label the particles