Grade 5-Topic 5 Human Impacts on Earth's Systems

Front

What is the effect of schools buying products made of recycled materials on Earth’s systems?

Back

Positive

Front

Using ceramic plates instead of paper plates is an example of what?

Back

Reusing

Front

What Earth system is directly changed by harmful gases in the air?

Back

Atmosphere

Front

What is also changed by hazardous air quality besides the atmosphere?

Back

Biosphere

Front

What is a material supplied by nature that is used by humans and other organisms?

Back

Natural resource

Front

What are natural substances made up of one or more minerals?

Back

Rocks

Front

What is the term for reducing the amount of waste we produce?

Back

Reducing

Front

What is the process of converting waste materials into reusable materials?

Back

Recycling

Front

What is an example of a renewable resource?

Back

Solar energy

Front

What is an example of a nonrenewable resource?

Back

Fossil fuels