Warm Up 53When developing a town for 10,000 people, what are some things (such as houses) that would need to be built?

Warm Up 55 (skip 54)1) What do you know

about soil?

WARM UP 55

1) What do you think happens to the dead leaves, twigs and trees?

2) What happens to exposed rock over long time periods?

3) Explain how soil is formed.

4) List several reasons why soil is important.

Warm Up 56

Explain what you see in this chart

Warm Up 57

1) Why do we care about soil erosion?

2) What are the main causes of soil erosion?

Warm Up 581) What is desertification? (look up in book)

2) What are some solutions to overgrazing? (look up in book)

3) What are 2 negative impacts of soil erosion?

Warm Up 591) When did humans begin farming?

2) List several differences between traditional and industrial agriculture.

3) List at least 1 positive and negative of the Green Revolution.

Warm Up 601) Explain what

genetically modified organisms (GMOs) are.

2) What is happening to the amount of arable land worldwide? Why is that a problem?

Warm Up 611) List at least 3 reasons

why you think we study water. (why is water important?)

2) List 5 ways you use water.

3) What is the chemical formula for water.

4) Estimate how much water you use each day.

Warm Up 621) Why is water a limited

resource?

2) Where is most water located?

3) How is most water in U.S. homes used?

4) List 3 ways to conserve water at home.

Warm Up 631) List 3 ways that

water is a “unique” substance.

2) In your own words, describe several steps in the water cycle.

Warm Up 64

1) Explain how an action of someone in NY State can impact the water quality of the Delaware as it passes Philadelphia

2) Copy and fill in blanks: ______% of Earth is covered by water, of that _______ % is in the Oceans and _______% is fresh water. Of the fresh water most is found _______________.

3) How can we protect groundwater?

Warm up 651) List as many ways

humans use water as you can think of.

2)Predict: For what use do we use the most water?

3)Predict: How much do you think you pay for 1 gallon of tap water?

Warm Up 661) List several

benefits and costs of dams

2) Why is desalinization not more common?

3) Why is chlorine often added to drinking water?