Renewable and non renewable resources

6.2 What are three disadvantages of renewable energy resources

1. Kills birds and other animals with wind 2. Cannot be stored easily 3. Cannot be transported to other locations easily

6.1 what are three advantages of renewable energy resources

1. Little air pollution 2. Usually doesn't release CO2 3. Wont run out

5.2 What are three disadvantages of fossil fuels

1. Will run out 2. Causes air pollution 3. Releases CO2

2.3 what is the worlds main source of electricity? Of transportation fuel?

1. Coal. 2. oil

5.1 what are three advantages of fossil fuels

1. High energy density 2. Can be stored for long periods of time 3. Easily transported

4.4 How could a renewable resource be used up? Give an example.

A renewable resource can be used up if people don't take care of it. Example: trees, trees cans be used up because if you don't keep planting the seeds for trees then you will run out of them eventually

7.1 explain how electricity is generated

A source of energy spins in a turbine, the turbine spins a generator, the generator creates a flow of electrons, which flow through the transmission lines (wires) to our homes/businesses.

7.2 What are the different ways we use to spin the turbine

A. Coal or natural gas: we burn fossil fuels to boil water to make steam, the flowing steam spins the turbine, B. Nuclear: nuclear fission creates heat to boil water to make steam, the flowing steam spins the turbine, C. Hydroelectric: flowing water spins the turbine, D. Wind: the wind spins the blades of a wind turbine, E. Geothermal: heat from deep inside the earth boils water, which makes steam, the flowing steams spins the turbine.

9.1 why has it been difficult for us to switch to renewable energy sources? Biofuels

Biofuels: hard to make enough-wont replace oil, very expensive

10.2 explain some examples of energy transformation like a candle, a car, a person jogging, photosynthesis

Candle: chemical, thermal, light/ electromagnetic A car: chemical, thermal, mechanical A person jogging: chemical, mechanical, thermal

10.3 explain the energy transformation when making electricity. Name the type of energy you start with and how it changes into other energy types, ending with electricity

Coal: chemical, thermal, mechanical, electricity

9.4 why has it been difficult for us to switch to renewable energy sources? Geothermal

Geothermal: only works in a few locations, cant be easily stored

9.5 why has it been difficult for us to switch to renewable energy sources? Hydroelectric

Hydroelectric: not available everywhere, can cause environmental damage

4.3 explain how a resource can be renewable

It doesn't have a limited supply, people can keep producing it, and it wont run out

3.2 Give four examples of non renewable energy resources

Natural gas, oil, coal, and nuclear

3.3 Explain why fossil fuels are non renewable and how they could be used up one day.

Non renewable resources are resources have a limited supply that will eventually run out, fossil fuels are a non renewable resource because if we keep using them then we will eventually run out of fossil fuels.

1.2 Give some examples of natural resources

Oil, coal, and natural gas

2.1 Identify some of the main energy sources humans use today

Solar energy, hydroelectric energy, geothermal energy, wind energy, and fossil fuels

9.2 why has it been difficult for us to switch to renewable energy sources? Solar

Solar: high upfront cost, is intermittent

8.2 Name five ways you can conserve energy at your home.

Take shorter showers, shouldn't have electricity under 78 degrees in the summer, turn off TV when your not using it, turn off lights when your not using them, and don't have your thermostat above 68 degrees in the winter

10.1 What is an energy transformation?

To change one type of energy to another type of energy

8.1 What does it mean to conserve energy?

To conserve energy means to not waste energy

2.2 what do we use energy for? name five uses. What are the main two uses?

We use energy for electricity, transportation, cars, lights, and air conditioning. Lights and Cars

4.2 give five examples of a renewable energy resource

Wind power, solar power, geothermal, hydroelectric power, and biofuels

9.3 why has it been difficult for us to switch to renewable energy sources? Wind

Wind: high upfront cost, is intermittent

3.1 what is the definition of a non renewable resource

a natural resource of which a finite amount exists, or one which cannot be replaced with currently available technologies

4.1 what is the definition of a renewable energy resource

a natural resource that can be replaced

1.3 How is a natural resource different from an energy source? Give some examples of each

natural resources are resources that are obtained from the earth, energy sources are natural resources that we obtain energy from. Natural resource: coal, oil, and natural gas energy source: fossil fuels, solar power, wind power, biofuels, and geothermal

1.1 define a natural resource

resources that are obtained from the earth