Are spiders related to crabs? Study the order of arthropods with a reading selection about animal diversity. It provides details about each class within the order, as well as vivid pictures and explanatory charts. 

Potassium permanganate, containing manganese one of the transition elements, has many uses such as mouthwash and propelling rockets, making it is a very diverse compound. The lesson delves into such transition elements and...

Discusses many aspects of information pertainingto organism classification. Provides links to other areas in biology as well.

This site from McGraw-Hill Higher Education provides links to key terms, lecture notes, and readings on classification, as well as questions from Raven and Johnson's textbook reading on classification.

Explore the classification of living things in this online, college-level textbook. Learn about taxonomy and its history through diagrams and descriptive information.

As part of a larger resource called "Getting started in Chemistry," this page examines various topics related to the study of matter. Included in the study are properties of matter, classification of matter, pure substances, chemical...

Understand the behaviors, characteristics, and classification of fungi.

Discover the diversity of plants.

Chapter 3 of a psychology textbook. It explains how abnormal behavior patterns are classified, the DSM, standards and methods of assessment, and the sociocultural and ethnic factors that may need to be taken into account during...

RCN offers information about plants, including the evolution and classification of different groups.

Understand how all mammals are divided into groups by similar characteristics.

This page discusses how the cladistic level of classification includes information from molecular biology to establish evolutionary relationships. The page discusses how this information is used to do this.

Learn how to classify matter into elements, compounds, and mixtures while watching this interactive lesson. Listen to the explanation while you discover how to differentiate between different types of matter.

Quiz on some aspects of biological classification. Provides feedback when answers to the quiz are submitted.

Learn about viruses of humans and other animals, the Baltimore classification system, and the HIV life cycle.

Learn the system that scientists use to classify living things.

A lesson on the classification of mosses and liverworts as well as the physical make up and similarities of the species.

This resource is an online quiz based at Quia! which allows the student to answer fifty questions on Congress and its activities, and get immediate feedback.

Listen and learn about Arrhenius acid-base reactions while exploring mixtures, solutions, and their reactions. Examine the photos of the examples discussed in this website and discover how arrhenius acid-base reactions occur.

As part of a larger resource called "Getting started in Chemistry," this page examines various topics related to density and buoyancy. Included in the study are definition of density and buoyancy, measurements, applications, and examples.

Bartleby.com provides the full text to Robert's Rules of Order Revised (published 1915). The content is indexed by section.

Having trouble studying for tests or comprehending new material? This in-depth guide provides a multitude of ways to help you acquire reading and critical thinking skills necessary for understanding new material.

Students learn about the five different types of chemical reactions, as well as the three classifications of reactions.

Understand the behaviors, characteristics, and classification of jawless fish.