Did you know there are 20 volcanoes erupting at any given time? Pupils look at various igneous rocks, read local geologic maps, and determine if their area has a history of volcanic activity. A reading passage and analysis questions...

Why do soybean plants that are planted weeks apart in the spring mature simultaneously in the fall? Four independent activities cover the history of phytochrome research, scientist collaboration, the electromagnetic spectrum, and...

Do you want to hear a joke about nitrogen and oxygen? NO. We all know there is oxygen in the air and that plants produce oxygen, but how was it discovered? Scholars read a handout, answer questions, and analyze material in the...

This heady calculus text covers the subjects of differential and integral calculus with rigorous detail, culminating in a chapter of physics and engineering applications. A particular emphasis on classic proof meshes with modern graphs,...

From China's physical geography and earliest beginnings of civilization to the Qin and Han dynasties, here is a nicely designed worksheet on ancient China, which includes a graphic organizer and timeline to summarize the reading...

What can a Ganesh statue, hand ornament, and print block tell you about India? Introduce your learners to the geography, history, and culture of India by analyzing primary sources and using the well-designed worksheets provided in this...

This textbook takes the learner from the basic definition of slope through derivatives, integrals, and vector multivariable calculus. Each section is composed primarily of examples, with theoretical introductions and explanations in...

Nineteen states legally permit school officials to physically punish children. Scholars learn more about the topic as they use the website to prepare for a class debate or discussion. Pupils read background information and discover the...

Three Dog Night isn't just the name of a band; it is also the way an Australian tribe, who used dogs to stay warm, would describe the temperature on a cool evening. After reading about many different ways of measuring temperature, the...

Dig into any piece of fiction with a series of analysis questions. There are two levels of questions provided: basic and in-depth. The basic questions can be copied double-sided onto a single piece of paper, while the in-depth questions...

Here is an excellent, detailed one-page reference sheet to introduce students to what a grade point average (GPA) is and how to calculate their own. 

A detailed, in-depth history of the Integrated Circuit is provided at this site. The information is complete with biographical information, general history, series of steps, pictures, and additional links.

This resource provides historic information on length measurement in the United Kingdom. Click on the topics on the left toolbar of the article to find out more information.

An illustrated history of timekeeping from ancient times to the present. Includes information on ancient calendars, early clocks, a revolution in timekeeping, world time scales and time zones, and the NIST standards.

A really good scientific piece, adapted from American Institute of Physics. Some biographical information, but mostly on Chadwick's scientific discoveries, particularly the neutron.

This resource provides information on the physical geography of the state.

Information about the element, Vanadium, atomic number 23. Covers its history, sources, physical and atomic properties, prevalence on the Earth, details about any health-related regulations, uses, and possible substitutes.

Information about the element, Strontium, atomic number 38. Covers its history, sources, physical properties, atomic properties, how abundant it is on the Earth, details about permissible exposure, uses, and possible substitutes.

Information about the first element on the periodic table, Hydrogen, atomic number 1. Covers its history, sources, physical and atomic properties, places it occurs naturally on the Earth and in space, its many uses, and forms in which it...

Information about the element, Copper, atomic number 29. Covers its history, sources, physical properties, atomic properties, how abundant it is on the Earth, details about permissible exposure, uses, and possible substitutes.

Information about the element Zirconium, atomic number 40. Covers history of its discovery, sources, physical properties, atomic properties, how abundant it is on the Earth, details about permissible exposure, uses, and possible...

Information about the element, Zinc, atomic number 30. Covers physical and chemical properties, how abundant it is on the Earth, where it occurs, isotopes, zinc in the environment, its role in human health, and the history of its use in...

For a very good primer on horses, visit this site. It contains an alphabetized listing of different types of horses, and the pages include the history of various breeds and their physical features.

Gives definition of catalysis, an explanation of how it works, different kinds of catalysis and examples, substances that impact on the catalytic process, the many applications of catalysis, and a history of catalyst technology.