Could you pass 11th-grade science?

The following questions were adapted from a 2009 Exit Level TAKS test.

Questions

1. Which system in a fish allows maximum oxygen intake through contact between the fish and its environment?

2. Some plants have a hard waxy coating on their leaves that helps prevent water loss. In which environment do these plants most likely grow?

3. When the fuse ignites the contents of a firework, oxygen is consumed as a result of which type of change?

4. What property causes attraction between molecules of liquid water?

Answers

1. Respiratory system

2. Desert

3. Chemical

4. Polarity