Food Chains Rock!
Students from Washington Elementary School in Richmond really enjoyed learning about San Francisco Bay food chains! They learned about apex predators, decomposers, scavengers, the difference between a food chain and a food web, adaptations, and the anatomy of Dungeness crab, striped bass fish, and seaweed. Students were excited to touch seaweed for the first time. Many described it as being gooey and “interesting.” Students were surprised to learn that seaweed is adapted to become completely dry and then rehydrate following the movement of the tides at the rocky shore.
Students were very excited to investigate Dungeness crab and striped bass fish anatomy by touching the animals and answering critical thinking questions.
After their hands-on experiences with different organisms, students learned how all the organisms they investigated are connected to other organisms in San Francisco Bay food chains including humans, and how the health of one organism affects the health of everything in the food chain.
Reiley shared, “Today I learned that seaweed does not have roots, it has holdfasts. And if seaweed gets dried out from the sun it can rehydrate.”
Natalia shared, “Today I learned that crabs have tails[abdomens]. Male crabs have a triangle shaped tail and females have a “U” shaped tail.”
Malaysha shared, “I learned from KIDS for the BAY that a female Dungeness Crab can hold 2.5 million babies!”