History of Earth
A Model of Three Faults
One of the most frightening and destructive phenomena of nature is a severe earthquake and its terrible aftereffects. An earthquake is a sudden movement of the Earth, caused by the abrupt release of strain that has accumulated over a long time. For hundreds of millions of years, the forces of plate tectonics have shaped the Earth as the huge plates that form the Earth's surface slowly move over, under and past each other. Sometimes the movement is gradual. At other times, the plates are locked together, unable to release the accumulating energy. When the accumulated energy grows strong enough, the plates break free. If the earthquake occurs in a populated area, it may cause many deaths and injuries and extensive property damage.
Awesome Fossils
Any evidence of past life preserved in a geologic context, such as within rock or sediment, is called a fossil. In this activity you will work as a paleontologist — a scientist who studies fossils to understand ancient landscapes, climate, and life on Earth — to find and identify fossils.
Burning Issues
Students will become familiar with fire terminology, realize how fire can be used as a management tool, and better understand the factors that need to be considered when planning a prescribed burn.
Chemistry of Burning
Why is CO2 increasing in the atmosphere? Who is doing it? Many people think that CO2 is “pollution,” so that clean burning should be a way to eliminate greenhouse gas emissions. In this demonstration, we review basic chemistry (see illustration) to realize that producing CO2 is an inevitable product of burning any fossil fuel.
Chocolate Rock Cycle
How sweet is this activity? It’s an introduction to the rock cycle using chocolate!
Connecting With Nature
Go on an adventure with the Blue Goose, the symbol of the National Wildlife Refuge System!
Core Sampling
Drilling is the only way to be sure that oil and gas fields exist and exactly what is present in the formation. Core samples reveal the physical and chemical nature of the rock. In this activity, you will create a model formation and “drill” for samples.
Dating Popcorn
How do geologists understand the Earth’s history? In part, they measure the age of rocks and other natural materials by dating techniques. They can date rocks by gauging the amount of decay of radioactive elements. You can simulate the dating process with popcorn.
Deep-Sea Drilling
This activity enables students to estimate and calculate scales of distance and length as used by ocean drilling scientists.
EarthCaching
EarthCaching is an exciting educational activity through which you can learn about Earth and the natural processes that shape our planet over time. By combining GPS technology with outdoor field experiences, EarthCaching allows students and others to experience the wonders of Earth in an entirely new and entertaining way.
Pages
