1. Question Notes Tool Box: Summary: (Answer EQ- completed after notes)
Topic/ Objective: Understand how matter is classified. Name Date Essential Question: Summarize the different types of classifications for matter. Period
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Summary: (Answer EQ- completed after notes)
Question
Notes

2. 2.1 Classifying Matter
Why are elements and compounds classified as pure substances?
Symbols to represent elements
Substance- every sample has fixed/ uniformed composition
Element- has fixed composition because its made of only one type of atom
1-2 letters, 1st letter always cap.
Some symbols use Latin names (ex Gold Au aurum)
Common language for scientists!

3. Heterogeneous: “different” “kind”
2.1 Classifying Matter
Heterogeneous: “different” “kind”
Parts are noticeably different
Homogeneous: substances evenly distributed cannot distinguish parts
Heterogeneous: salad dressing
Homogeneous: salt water
Solute dissolves in a solvent- forms a homogeneous mixture
particles intermediate in size (between sm. Particles in soln. and larger particles in suspension); do not separate into layers
Two types of mixtures
Ex of each:
What is Solution?
A Colloid is…

4. Filtration-size of particles Distillation-boil solution
2.1 Classifying Matter-2.2 Physical Properties
Filtration-size of particles
Distillation-boil solution
Viscosity (flow), conductivity (electric), malleability (shape), hardness, melting/boiling points, density.
Property of material changes not the composition
How separate mixtures? Physical properties include: What is a physical change?

5. Chemical composition/ make up
2.2Physical Properties-2.3 Chemical properties
Chemical composition/ make up
Color change, produce gas, form precipitate (solid),
What is a chemical property? Evidence of a chemical change: