Students explore limu diversity. In this ocean ecosystem lesson, students classify limu according to its physical properties. Students work in small groups to generate scientific observations and sort limu by characteristics.

What can one learn about a planet based on a small surface sample? Learners will explore artifacts from a mystery planet and see what they can determine about the planet based on the evidence in front of them. 

Using a dichotomous key, pupils identify characteristics of fish who live in the Great Lakes and explain how these features help them survive. In small groups, class members discover what features scientists consider important and...

Third graders observe four different arthropods.Students find, observe, discuss and record similarities and differences among and between insects and people. They appreciate diversity in and recognize unity of all people.

Students are able to extract and observe a visible amount of DNA from Escherichia coli cells. They discuss the properties of DNA. Students confirm the presence of DNA by a reaction with an indicator.

Pupils investigate the trees of the Mississippi Valley, specifically looking at the coniferous and deciduous forests. The research of the area is part of a field study when students conduct a survey of local forests in order to create a...

Learners explore various tree species. In this tree species lesson, students collect leaves on nature walks and use Internet sources to identify the trees that the leaves belong to. Learners graph their data as well.

Young scholars explore U.S. geography by completing an observational activity with classmates. In this New Mexico lesson, students research the Chihuahuan Desert by visiting several Internet sites. Young scholars write the data they've...

Fourth graders generate a spreadsheet that includes research about coastal plants, wetland plants and animals and Hawaiian stream animals.

High schoolers examine animal kingdom classifications. They discuss how animals are placed into kingdom classifications and compare similarities and differences of animals within a kingdom.

Students investigate how to classify items based on similar characteristics. They study the scientific system of classification.