A photograph of a pteropod shell 0 days before increased levels of pH and Carbonate.The ocean acts like a sponge, absorbing CO2 from the atmosphere. This extra CO2 makes water more acidic, which makes it harder for animals to build and maintain their shells. Students in this lesson will explore why shelled animals need their shells and what might make it harder for those shells to grow. 

Documents: 
Package icon lego_shell_building.zip
Subject: 
Biology
Climate Change
Ecology
Marine
Grade Level Range: 
Elementary (4-5)