1. How are some birds able to stay in the air without flapping their wings? 2. Let’s grow mold! Obtain some bread slices and plastic sandwich bags. Keep the bread in the bags so that you won’t breathe...

1. How are some birds able to stay in the air without flapping their wings?

2. Let’s grow mold! Obtain some bread slices and plastic sandwich bags. Keep the bread in the bags so that you won’t breathe in too many spores during the course of the experiment. How long does it take for mold to grow? Can you see the filaments? Can you see spores?