Matter & Particle Theory. Grade 9 Science– Notre Dame College School. John Dalton – the guy who came up with particle theory. Agenda. What is matter The Particle Theory Mixtures vs. Pure Substances Mixtures Hetrogeneous Mixtures Solution Homogeneous Mixtures Mechanical Mixture
Grade 9 Science– Notre Dame College School
John Dalton – the guy who came up with particle theory
1. All Matter is made up of very tiny objects called particles.
2. All Particles have spaces between them.
3. Particles present in matter are always in motion.
4.The particles in a substance attract each other.
Take a guess!
Water is a molecule because it is made out of two types of atoms (oxygen and hydrogen)
Water is a compound because it has many molecules of one type (H2O = Water)
An Oreo cookie is a heterogeneous mixture
A lasagne, parfait, and a cookie are both examples of mechanical mixtures
THINK ABOUT IT!
What are some of the parts of these mechanical mixtures?
Salad Dressing, glittery nail polish, and yogurt are examples of suspensions
Kool-Aid and tea are examples of solutions