STATES OF MATTER Unit III: Chapter 7.1

5 STATES OF MATTER Matter is anything that has mass and volume.

Bill Nye – States of Matter https://vimeo.com/124260338

MASS Mass is the quantity of matter a substance or object contains. Mass is usually measured in grams (g) or kilograms (kg).

Volume Volume is the amount of space taken up by a substance or object. Volume is usually measured in millilitres (mL), litres (L), or cubic centimetres (cm3).

THREE COMMON STATES OF MATTER

STATES OF MATTER

WS 7-1 Complete Pages 1-2

ABSOLUTE ZERO Lowest theoretically temperature Most molecular motion stops https://www.youtube.com /watch?v=TNUDBdv3jWI

Kinetic Energy Kinetic energy is the energy due to motion.

Kinetic Molecular Theory (KMT) Explains what happens to matter when the kinetic energy of the particles changes. A theory provides a scientific explanation based on the results of experimentation.

Kinetic Molecular Theory (KMT) All matter is made of very small particles. There is empty space between particles. Particles are constantly moving. The particles are colliding with each other and the walls of their container. Energy makes particles move. The more energy the particles have, the faster they move and further apart they get.

Solid – Liquid – Gas Solid: Particles are so tightly packed together they cannot move freely. They can only vibrate. http://www.dlt.ncssm.edu/tiger/Fl ash/phase/KineticEnergy- Solid.html

Solid – Liquid – Gas Liquid: Particles are farther apart and they can move by sliding past each other. http://www.dlt.ncssm.edu/tiger/Flash/phase/KineticEnergy- Liquid.html

Solid – Liquid – Gas Gas: Particles are very far apart and move around quickly. http://www.dlt.ncssm.edu/tiger/Flash/phase/KineticEnergy-Gas.html

WS 7-1 Complete Pages 3-4

FIND THE FOLLOWING PEN/PENCIL NOTES

Thermal Expansion & Contraction Thermal Contraction is the increase in volume of a substance when its temperature is raised. is the decrease in volume of a substance when its temperature is lowered.

Explain  Thanks Ben

Thermal Energy Thermal Energy is the total kinetic energy of all the particles in the substance.

Heat Heat is the transfer of thermal energy between two material of different temperature. Heat is always transferred from the substance with a higher temperature to the substance of a lower temperature.

Temperature Temperature is the average kinetic energy of the particles in a substance.

Phases Change

PHASE CHANGE

PHASE CHANGE

PHASE CHANGE

PHASE CHANGE

Phase Change

Melting Point vs Boiling Point is the temperature at which solid turns to liquid. is the temperature at which liquid turns into gas.

Three States of CO2 http://www.periodicvideos.com/videos/mv_carbon_dioxide_one.htm

WS 7-1 Complete Pages 5-6 Do REVIEW 7-8