1. Why does Matt mention the solar system?

1. He has always wanted to study the solar system.
2. He thinks that if it is possible to study the solar system, it must be possible to study water flow.
3. He likes building models.
4. He is mad at Keith.

2. Why does Keith think the bug spray is not dangerous?

1. He always brings it on vacation.
2. He read the ingredient list.
3. He thinks fish don’t need bug spray.
4. He often puts bug spray on himself.

3. In the reading Matt says, “Guys, you might both have a point.” What did he mean by that?

1. He thinks there is a relationship between polluted rivers and polluted oceans, but Keith’s bug spray alone may not kill any fish.
2. He thinks they should build a model to find out what would happen to the bug spray in the rain.
3. He wanted Keith and George to stop arguing because he was frustrated.
4. He wants Keith to feel bad about dumping out the bug spray onto the ground.