The snails will crawl around, leaving mucus tracks. The length of the tracks can later be measured and cm traveled per minute can be calculated. Periwinkle vertical position lab . Periwinkles in a tank and in nature may adjust their position to remain just above the waterline. One hypothesis is that they do it to avoid predation.
Students hypothesize, design and conduct experiment, write up.
Anemone feeding response lab . Anemones are easily collected in fouling communities. Students hypothesize, design and conduct experiment, write up. Blue crab dissection and feeding lab . Get a standard crab dissection lab but use cooked, seasoned blue crabs.