1. 8.P.2.1-8.P.2.2

2.  What are some of the forms of you energy used today? Explain how you used them.

3.  I used several forms of energy today. First I used mechanical energy when I got out of bed and started moving around this morning. Then I used electrical energy to flat iron my hair. Thermal energy was used when I cooked my breakfast. The last form of energy that I used was chemical energy which was used to power my car on the way to work.

4.  All energy can be classified as nonrenewable or renewable

5.  Nonrenewable resources- are used up much faster than it can be replaced

6.  Fossil fuels- energy from the decayed remains of ancient plants and animals  Produce large amounts of energy

7.  Coal- solid fossil fuel (formed from ancient plants) burned in many power plants  Petroleum/crude oil- liquid fossil fuel (formed from ancient sea creatures)  Natural gas- a fossil fuel found along with Petroleum

8.  Renewable energy resources- can be replaced as it is used or cannot be used up

9.  Solar energy – energy from the sun  Solar panels can be used to heat water for homes  Other solar panels produce electricity  Photovoltaic cells (solar cells)- produces electricity by causing electrons to move when light hits atoms in the cell

11.  Photovoltaic cells- require sunlight and cannot produce electricity at night  Solar batteries store energy produced by solar cells

12.  Solar reflectors- reflects and focuses sunlight onto a fluid filled pipe that uses thermal energy to turn water into steam

13.  Wind energy-energy of moving air  Hydro power- energy of moving water  Biomass- any material from living things that can be used as an energy source  Burning wood, ethanol (crops/corn)  Geothermal- heat energy from inside the earth  Hot springs, geyser, volcanically active ground