1. Lesson 3 – Classification of Matter
Chemistry

2. Learning Goals
To be able to classify matter

3. Matter
Matter is anything that has mass and takes up space (has volume)
All matter is made up of particles
These particles are extremely small (cannot be seen with a microscope)
Matter is classified depending on the type of particles that it consists of

4. 1. All matter is made up of tiny particles.
2. Different substances are made up of their own unique particles.
3. Particles are separated by empty space.
4. Particles are always moving. Heat makes the particles move faster.
5. Particles are attracted to each other.

5. Heterogeneous Mixtures Homogeneous Mixtures (Solutions)
Matter
Mixtures
Heterogeneous Mixtures
Homogeneous Mixtures (Solutions)
Pure Substances
Elements
Compounds

6. Pure Substances
A pure substance means that all of the particles of the substance are the same
Pure substances are divided into 2 categories: elements and compounds

7. Elements
Elements are pure substances that cannot be broken down into simpler substances, either physically or chemically
Elements are made of only one type of atom
All the elements are arranged in the periodic table
Examples of elements are oxygen, carbon, gold, and iron

8. Compounds
Compounds are pure substances that can be broken down into simpler substances, either physically or chemically
Compounds are made of particles containing two or more different atoms
Examples of compounds are water (H2O), salt (NaCl), and carbon dioxide (CO2)

9. Mixtures
Mixtures are not pure substances because they contain more than one type of particle
They contain 2 or more pure substances mixed together
Mixtures are divided into 2 categories: Heterogeneous mixtures and homogeneous mixtures or solutions

10. Heterogeneous Mixtures
The particles of a heterogeneous mixture do not mix well
It is easy to differentiate different substances in this mixture
Examples are pizza, oil and water, and salad dressing

11. Homogeneous Mixtures (Solutions)
The particles of a homogeneous mixture mix well
A solution looks like it has only one substance, it is difficult to see the different parts
Examples are Kool-aid, air, and salt water

12. Success Criteria
I CAN classify matter as either an element, compound, or a mixture (heterogeneous or homogeneous)

13. To Do…
Eureka videos
Worksheet