Atoms and Elements

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

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.

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

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 ______.

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 ________________.

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 ________________.

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 188-190

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?

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

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