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Courtnee Barchus

on 17 September 2013

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Transcript of Matter

What is matter made of?
Describing Matter
What is the smallest
Possible Piece of Matter?
- The atom is the smallest possible piece of matter.
The Atom
- An element is a pure substance, that cannot be broken down any further by any chemical or physical means.
- When atoms form chemical bonds with other atoms, they form molecules.
- A compound is a pure substance made up of two or more different elements.
- Carbon dioxide?
Molecule, Compound, or Both?
1. What is the smallest unit of an element that still has the properties of that element?

A. An Atom
B. A Compound
C. An Electron
D. A Molecule
Brain Check
- We have found 94 naturally occurring types of atoms. We call them "The Elements"!
- All elements are made of one type of atom.

-Each element has different properties because they are different types of atoms.
- Atoms also have the ability to combine with other atoms. A chemical bond happens when atoms connect together.

-Just like letters of the alphabet combine to form words, atoms are the building blocks for matter.
- Molecules are groups of two or more atoms held together by chemical bonds.
- For example the oxygen we breathe consists of two oxygen atoms that are bonded together to form the oxygen molecule O2
-Ex. Water is a compound. It is made up of two hydrogen atoms, and one oxygen atom.
- Keep in mind that every compound
is a molecule, but not every molecule
is a compound!
- compounds need more than one
element, molecules can be just one
element but two atoms of that same element.
- Nitrogen?
- Propane?
What are the terms we use to describe matter?
- Compounds are special types of molecules.
- Can you name some other types
of compounds?
3. Sugar is composed of Carbon, Hydrogen, and Oxygen. Sugar is an example of:
A. An Atom
B. A Compound
C. An Mixture
D. A Molecule
Brain Check
4. Which of the following substances can be separated into several elements?

A. nitrogen
B. zinc
C. air
D. aluminum
2. Which of the following is formed when two elements combine chemically?

A. an atom
B. a compound
C. an electron
D. a mixture
Full transcript