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Today we are going to learn about the many ways people can change Earth.



Where do you think this garden is? How are these people changing Earth? What things do you do that change Earth?

People do things every day that change the land, water, and air. Some of these things are helpful, but others are harmful.



Your environment is everything that surrounds you. All people on Earth share the same global environment. It includes everything on this planet.





Your habitat is the place where you and your family live. Every living thing has a habitat where it can live most easily. Your habitat may be a city, a frog's may be a swamp. The global environment includes many habitats.

People affect the Earth when they grow crops.

Tilling, or digging, loosens and mixes the soil. Roots, worms, and water move easily through loose soil.



Watering crops adds water to the soil and helps plants stay alive.

Fertilizer, or plant food, is good for plants. However, too much fertilizer can pollute land and water.



Harvesting the crops leaves the soil exposed to wind and erosion.

= How People Affect Earth =

People affect Earth in both helpful and harmful ways.



Where people choose to live and the pollution people create affect Earth and the global climate.

People can also help Earth by protecting habitats and conserving resources. What are some ways that we can help protect Earth?

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People can affect Earth in helpful ways. They can protect habitats by setting aside land and water for parks. Parks help preserve habitats.

Grow plants that need less water.

People can also conserve natural resources. One easy way is by recycling paper, glass, plastic, and metal.

And like we talked about yesterday, use less water and electricity.



What are some ways you can conserve or save natural resources at home?