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...

What kind of organisms are living in the stream? After an explanation on how to use a dichotomous key, groups of three to four use the keys to identify macroinvertebrates from a local freshwater stream. Using the the concept of...

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.

Fourth graders compare an ecosystem before and after they introduce crayfish to that ecosystem. In this ecosystem lesson plan, 4th graders see what happens when you introduce a non native animal to a habitat. Students then make...

In this arthropods activity, students will review arthropod exoskeletons, jointed appendages, molting, and types of respiratory structures. Students will also review arthropod senses, body systems, and reproduction. This activity has 6...

Third graders learn about loon fun facts. In this loon lesson, 3rd graders read three pages of facts about loons and their habitats. They read Native American myths about loons and make a loon mask using the attached worksheets.

Students discuss why it is important to take care of streams, what is non-point source and point source pollution, what are some causes of pollution in streams, and what can we do to prevent some of these causes of pollution? They steam...

In this arthropods worksheet, learners read rhymes about arthropods and use the science terms they have learned to answer the question following the rhyme. This worksheet has 12 fill in the blank questions.

In this arthropod worksheet, students compare and contrast the different animals found in the Phylum Arthropoda: insects, arachnids, and crustaceans. Students complete 8 fill in the blank statements and color illustrations.

In this screech owl worksheet, learners complete activities to learn about screech owls after reading Screech Owl at Midnight by C. Drew Lamm. Students learn how to attract owls, investigate owls in their community, and define words...