Curated OER
Invertebrate Diversity
Comparative anatomy prevails in the lesson exploring diversity among invertebrates. Biologists examine physical characteristics of an earthworm from phylum annelida and a meal worm from phylum insecta. They also inspect a cricket and a...
Curated OER
Investigate Science Using Crayfish
Young scientists discover the importance of scientific investigation by observing live crayfish. They carefully observe the patterns of crayfish in different environments. Then they discuss their conclusions and define what all living...
Curated OER
Crayfish Dissection Worksheet
In this crayfish dissection worksheet, students answer 11 questions about crayfish bodies. One question requires students to label all the parts of a crayfish body.
Curated OER
The External Anatomy of the Crayfish
Students investigate the external anatomy of a crayfish. In this arthropod lesson plan, students study the structures of the head, the body and the appendages of a crayfish. They locate specific structures present in arthropods and...
Curated OER
Digital Dissections
Students dissect organisms and take photographs to create a PowerPoint dissection library. In this anatomy lesson plan, students dissect organisms that interest them and photograph the process while identifying structures. They create a...
Curated OER
The Trouble with Crayfish
Fourth graders compare an ecosystem before and after they introduce crayfish to that ecosystem. For this ecosystem lesson plan, 4th graders see what happens when you introduce a non native animal to a habitat. Students then make...