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Renewable Energy Resources

Renewable Energy Resources

Assessment

Presentation

Science

8th Grade

Practice Problem

Easy

NGSS
MS-PS3-3, MS-ETS1-1, MS-ETS1-2

Standards-aligned

Used 25+ times

FREE Resource

8 Slides • 4 Questions

1

Renewable Energy Resources

Page 274

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2

Guiding Questions & Standard

  • What are renewable energy resources?

  • How do renewable energy resources reduce human reliance on other natural resources?

3

Standards

  • MS-ESS3-1: Construct a scientific explanation based on evidence for how uneven distributions of Earth's mineral, energy, and groundwater resources are the result of past and current geoscience processes.

  • MS-ESS3-3: Apply scientific principles to design a method for monitoring and minimizing a human impact on the environment.

4

Renewable Resources

Alternative energy resources that will never run out because they are replaced by nature with little help from humans.


Solar, Wind, Hydro, Geothermal

5

Open Ended

Reading Check: Why are some energy resources referred to as "renewable"?

6

Solar Energy

  • Passive Solar Power

  • Active Solar Power

  • Benefits: Sunlight is free,

  • Costs: can be expensive, battery technology not advanced enough, cloudy days

7

Poll

Active or Passive? A green house.

Active

Passive

8

Poll

Active or Passive? Directly generates electricity.

Active

Passive

9

Hydroelectric Power

  • Gravity pulls water down hill and can be used to generate electricity.

  • Water spins a turbine, which generates electricity.

  • Benefits: generates electricity and is controllable.

  • Costs: disrupts natural flow of river and impacts natural processes, alters natural habitats, expensive to build

10

Wind Energy

  • A land-based turbine that spins in the wind.

  • Benefits: wind is free.

  • Costs: $$, can threaten birds and spoil scenery, requires great amounts of land, parts of turbine are nonrenewable.

11

Geothermal Energy & Bioenergy Resources

  • Dig deep into Earth and use the heat to warm water - creates steam which spins a turbine and generates electricity.

  • Biomass (wood, grass, plant-based materials) can be burned to produce heat and light.

  • Ethanol and other biodiesel technology is being explored.

12

Open Ended

What costs and benefits can you find for geothermal and bioenergy? List at least 1 for each!

Renewable Energy Resources

Page 274

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