Curated OER
Gas Exchange And Respiratory Systems.
Explore structures within the realm of gas exchange in terrestrial and aquatic life. The excellent, labelled diagrams and clear descriptions help your students view the different structures and adaptations that have...
Biology Junction
Cnidarians and Ctenophorans
Cnidaria is a broad phylum of 11,000 different species from jellyfish to coral. Most Cnidarians are marine species with a few freshwater examples. A lesson presentation explains the important characteristics of different species of...
Curated OER
Noise Underwater
Sixth graders predict with reasoning how a sound will be heard underwater and record and communicate their findings. They listen to the difference in the way noise sounds underwater verses out of water and relate this to how whales and...
Khan Academy
Khan Academy: Sarin Gas and Its Potent Effects on the Body
Read a passage about sarin gas and its effects on the body and answer the follow-up questions.
Centers for Disease Control and Prevention
Centers for Disease Control: Facts About Sarin
An overview of the nerve agent sarin, including signs and symptoms of sarin exposure, ways to protect yourself from exposures, and treatment.
Centers for Disease Control and Prevention
Centers for Disease Control: Facts About Vx
An overview of VX, a nerve agent and known weapon of chemical warfare. Includes information about the signs and symptoms of VX exposure and recommended treatments.