Elevate Science 5th Grade Topic 5 Human Impact on Earth's System

Front

What is a negative impact of building a dam?

Back

A negative impact is that the dam blocks the natural flow of water and alters the environment for plants and animals.

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What is a positive impact of a dam?

Back

A positive impact is that it generates electricity without the pollution associated with burning fossil fuels.

Front

What is geothermal energy?

Back

Geothermal energy is a renewable resource that uses heat from the Earth's interior.

Front

How is geothermal energy extracted?

Back

The heat is contained in rocks, steam, water, and other matter below Earth's surface and can be pumped directly to buildings or used to turn turbines that produce electricity.

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What are some sources of pollution?

Back

Sources of pollution include noise, garbage, and chemicals.

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What is the environment?

Back

The environment includes all of the living and nonliving factors in an area.

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What is hydroelectricity?

Back

Hydroelectricity is electricity produced by using the energy of flowing water.

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What is the role of engineers in environmental projects?

Back

Engineers design and implement projects that can have both positive and negative impacts on the environment.

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What is a renewable resource?

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A renewable resource is a natural resource that can be replenished naturally over time.

Front

What is the difference between positive and negative human impacts on the environment?

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Positive impacts benefit the environment, while negative impacts harm it.