This lesson introduces elementary students to the concept of soring living things into groups according to certain features. Students look at two kinds of dinosaurs based upon the structure of the pelvis and categorize them accordingly. Full description.

This tutorial is about the Arctic tundra biome; the plants and animals found there; and the amount of sunlight, temperatures, seasons and permafrost. Examples of Arctic ecosystem interactions, food chains, and biological adaptations to the Arctic Coastal Plain are given. There are photographs of wolves, caribou, arctic hares, minks, lemmings, arctic foxes, polar bears, seals, walruses, ptarmigans, ... Full description.

This illustrated story is about a seven year old girl whose father works as a town forester. The story is interspersed with facts about trees and teaches children about urban forests, ecosystems, foresters, and photosynthesis as well as the differences between broadleaf, conifer, deciduous, and evergreen trees. Full description.

In this activity, students build Euoplocephalus and Triceratops dinosaurs, answer basic counting questions, and print out coloring pages. The site provides basic information on the two kinds of dinosaurs and a list of further reading materials. Full description.

In this lesson, students investigate the habitats of local plants and animals and explore some of the ways animals depend on plants and each other. They will observe living organisms in a local ecosystem and create detailed drawings and descriptions of them. The final section of this lesson offers a few Internet resources to extend the ideas of this lesson and give students opportunities to observe ... Full description.

In this lesson, students will observe and document similarities and differences between parts of plants. It supports students interacting with nature and provides them with a framework for their observations by offering them opportunities to explore, question, and document similarities and differences among plant parts. Students will identify and sort plant parts through hands-on activities and group ... Full description.

This lesson shows students that living things can be sorted into groups in many ways using various features to decide which things belong to which group and that classification schemes will vary with purpose. It is the first of a two-part series on classification. At this grade level, students should have the opportunity to learn about an increasing variety of living organisms, both the familiar and ... Full description.

This lesson shows students that living things can be sorted into groups in many ways using various features to decide which things belong to which group and that classification schemes will vary with purpose. This lesson is the second of a two-part series on classification. It exposes students to the idea that a variety of plants and animals (organisms) can be classified into one or more groups based ... Full description.

In this lesson, students investigate the living creatures in a drop of pond water under magnification. This lesson is the second in a two-part series on microorganisms. It is designed to follow the first lesson, but can also stand alone. Students observe microscopic organisms found in pond water using a hand lens, 30x magnification, and 100x magnification. Observing these organisms should stimulate ... Full description.

In this lesson, students learn the basics about dinosaur eggs and compare the life cycle of an animal hatched from an egg with one born from its mother's womb. They will create a dinosaur egg and use a map to locate countries where dinosaur eggs have been found. They may also list all the animals that are born from an egg and discuss how a newborn emerging from the womb of its mother is different ... Full description.