Begin Unit 4: Energy

(Note taking in notebooks today - new unit!)

Quarter 3 grades are in! 16 B days left...
Quarter 4 starts today - new seats :)

This week:
-Building tour rescheduled to 4/25
-Wed. tutorial, Thurs. assembly
-Sub on Thursday: Mr. Rivera
-Vocab quiz Mon. 4/23
-Next week is Earth Week!

Monday: Meatless Monday: don't eat meat for the day to help bring awareness to the harmful effects of factory farming. Dress up as your favorite animal. 

Tuesday: Transportation Tuesday: walk, bike, carpool, or bus to school! Wear your favorite PDX gear. 

Wednesday: Water Wednesday: bring a reusable water bottle to school and wear blue! 

Thrifted Thursday: Wear your favorite vintage gear.

Farming Friday: Dress up in your favorite plaid shirt, overalls, and boots. During tutorial we will be either planting in the garden (if ready) or potting plants. 

Name the ways we use energy every day...

Heading: Unit 4 - Introduction to Energy
Learning Objective: I can learn about different energy sources and their environmental impacts

Energy Consumption Intro Video (7 mins) 

(Take notes from the PowerPoint )

-Energy is the capacity to do work
-Thermodynamics is the study of the flow or exchange of energy 
-Law of Conservation of Matter – Energy is neither created nor destroyed, it simply changes form (the net energy in the entire universe is constant)

-Where does your electricity come from? (video)

-1/3 of the energy consumed globally is used to produce electricity
-The US has 4.5% of the population and uses 25% of the electricity
-Energy is expressed as kilowatt-hours: a unit of energy equal to the work done by a power of 1000 watts operating for one hour
-76% of the commercial energy we use comes from nonrenewable fossil fuels (oil, natural gas, and coal) 
-Renewable energy = supplies of energy will not be depleted by our use (sunlight, geothermal energy, wind energy)
-Nonrenewable energy = supplies are being depleted and would take millions of years to replenish (oil, coal, natural gas, nuclear energy) 
-Fossil fuels are non-renewable 
-There are three fossil fuels: coal, oil and natural gas. 
-Coal is the predominant fossil fuel used to generate electricity (52%)
-Fossil fuels we burn today are formed from organisms from 100 - 500 million years ago
 -Fossil fuels are our dominant source of energy
-High-energy content of fossil fuels makes them efficient to burn, ship, and store