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Grade 9 Science and Technology
Welcome to Mr. Afshar's grade 9 science class
Home
Material World
Organization of matter
Subatomic particles
Atoms
Molecules and Macromolecules
Others
Particle theory
Representing a particle
Particles in motion
Mixtures
Properties of matter
Properties and characteristic properties
Physical changes
Phases
Temperature
Pressure
Phase change graphs
Dissolution
Solutions
Dilutions
Problems for solutions and dilutions
Chemical changes
Technological World
Isometric projection
Living World
Genetics
Introduction to DNA
Gene expression
Mutations
Inheritance
Evolution
Nervous system
Circulatory system
Digestive system
Nutrition
Digestion
Excretory system
Immune system
Earth and Space
Our Solar System
Days, Months, Seasons and Years
Outside the solar system
Light, light years and the universe
Labs skills
Converting units
Tools to use in the lab
Converting units
You can see my original explanation of the topic here in this video (
starts at 13:30
).
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