Renewable and Non- Renewable Energy

Grade 8 Science

Kinetic Energy

Energy from motion like air in wind energy

Generator

Machine that turns mechanical energy into electrical energy

Tidal Energy

that uses the movement of ocean tides to generate electricity.

Solar energy

Energy from the sun used for heat or electricity

What role does the magnet play in the generator?​

It interacts with the coil to produce electricity​

What type of energy is stored in water at high tide?​

Potential Energy

What is the role of the dam in tidal energy generation?​

It helps the water pass through pipes to turn turbines.​

Explain how the movement of water in tidal energy systems is used to generate electricity.​

The movement of water in tidal energy systems drives turbines, which convert kinetic energy into electrical energy.

When plants and/or animals die, how is the energy released?

energy is released as heat via decomposition.

Examples of fossil fuels?

coal, oil, and gas. ​

Considering the finite nature of fossil fuels and the environmental impact of their use, what sustainable alternatives can we use to meet global energy demand?

Sustainable alternatives include solar, wind, hydroelectric, and geothermal energy sources that have minimal environmental impact and are renewable.

What are bioplastics?

Plastics made from renewable plant-based materials that decompose more easily in the environment and cause less pollution compared to conventional plastics.​

How could the use of renewable resources benefit the environment in the long term?​

The use of renewable resources can reduce greenhouse gas emissions, decrease air and water pollution, and conserve natural resources, leading to a healthier ecosystem and sustainable development.

Why are bioplastics considered environmentally friendly compared to traditional plastics?​

Bioplastics are made from renewable resources and decompose more easily, reducing pollution and reliance on fossil fuels.

The heat inside the earth is used as an energy source, it is called….

geothermal energy