P111. Why does the water at Pasco need to be treated at a water treatment plant ? A) The water from the river is not safe B)The water from the river is dirty C) People in Pasco make the river water dangerous to drink

Look at p109. What country is Columbia in ?

Look at p111. The Columbia river flows in which countries ?

Page 110. Why does Kevin Aiken use river water to grow cherry trees? A) It is cleaner than use a hose. B) There is not enough rain C) He likes going to the river

P 114. Why do people use barges to move goods ? A) Barges are faster than trucks and they can get goods quicker by travelling on water. B) Barges are easy to drive C) Barges are big and can carry a lot of things.

P 113. Explain in steps (first, second, third) how boxes and bags are made from recycled paper at Longview paper plant.

After Astoria where does the river go ?

p112. : How does the Dallas dam generate electricity ?

Is Astoria at the end or the start of the Columbia river ?

Look at p109. What might people in Colombia use the water for ? A) Brush their teeth B) To transport goods C) Sit and relax on the beach