Curated OER
Living Organisms as Indicators of Pollutants in Fresh Water Ecosystems
Students observe the effects of pollution on living organisms. In this pollution lesson plan, students observe fresh water Hydra and look at their structures and movement. They place samples of pond and lake water on the Hydra and...
Curated OER
The Effect of Automobile Exhaust on Hydra in an Environmental Chamber
Students study the structure and habitat of the hydra in this lab lesson. Students determine if the hydra can be used as an indicator to detect pollution from automobile exhaust.
Curated OER
Hydra Anatomy
In this hydra anatomy worksheet, students label the given diagram. Students indicate the appropriate parts of the hydra using the provided word bank.
Curated OER
Invertebrate Word Search
In this biology worksheet, students identify and locate vocabulary terms related to various types of invertebrates. There are 21 biology terms located in the word search.