Three of Earth's spheres are introduced to your earth scientists: lithosphere, hydrosphere, and atmosphere. Each are described with text, while a combination of photographs and computer images are displayed. One of the best ways to use...

In this world's spheres activity, students are given nine spheres and they match the given definitions of the sphere with the term.

From the layers of Earth's spheres to latitude and longitude to looking at topographic maps, learners discover the elements of Earth's systems. 

Every year, more than 14 billion pounds of garbage is dumped into the oceans of the world, most of which is plastic and toxic to ocean life. Lesson 32 in the series of 36 focuses on environmental concerns, specifically pollution. Under...

Class members explore the carbon cycle in the final installment of the 10-part Discover Your Changing World series. They play a simulation game where they walk through the steps carbon takes as it cycles through the different layers...

In this Earth's layers learning exercise, students click on the links in the questions about Earth's layers to find the answers to the questions and then come back and answer the questions. Students answer 12 questions total.

Understand Earth's biosphere which contains the lithosphere, hydrosphere, and atmosphere.

A discussion of the interactions between the four spheres of Earth and how they affect weather and climate. The slideshow is divided into two parts. The first deals with interactions between the atmosphere and the hydrosphere and the...

This site provides information and activities for classes to learn more about ozone depletion and UV radiation.

Energy is neither created nor destroyed - and yet the global demand for it continues to increase. But where does energy come from, and where does it go? This video examines the many ways in which energy cycles through our planet, from...

Human beings have an enormous impact on the natural environment, and ultimately on each other. The way we chose to house, clothe, shelter, and meet the needs for vital resources such as food, energy, and water, not only affect the...

Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water),...

Explains what the four spheres of the Earth are, and the interactions between them.

Explains what the four spheres of the Earth are and describes how volcanic eruptions affect the different spheres. Also provides a list of events that are examples of interactions.

A detailed overview of the Earth's climate, with explanations about the difference between weather and climate, dendrochronology, palynology, and how Earth's climate has changed over time. All information is reinforced through pictures,...

Get a general grasp on the four spheres, five sub-fields, and two scales of physical geography.