1
Dendrochronologists use tree rings to go back in time to learn more about past climate. Using straws to recreate tree rings, you can learn how dendrochronologists work. Construct a 50-year climatic history on a three-meter time line. In this activity, students use the spacings between tree rings to...
Grade Level   5 6 7 8 9
Classroom Activities Curricula and Instruction
Save to List
2
"""""Soil porosity"""" refers to the amount of pore, or open space between soil particles. Pore spaces may be formed due to the movement of roots, worms, and insects; expanding gases trapped within these spaces by groundwater; and/or the dissolution of the soil parent material. Soil texture can also...
Grade Level   5 6 7 8 9 10
Classroom Activities Curricula and Instruction
Save to List
3
Raindrops contain more than just water. In addition to the small particles of dust around which water drops form, raindrops can contain chemicals found in the atmosphere. Often rain is slightly acidic. This “acid rain” can chemically affect (weather) materials it touches. The amount of...
Grade Level   6 7 8 9 10
Classroom Activities Curricula and Instruction
Save to List
4
Soil is often overlooked as a natural resource. Like fossil fuels, we depend on it for energy in the form of foods. And, like fossil fuels, it is nonrenewable. Soil is a delicate balance of inorganic minerals, organic matter, living organisms, soil water, and soil atmosphere. The natural development...
Grade Level   6 7 8 9 10
Classroom Activities Curricula and Instruction
Save to List
5
The National Wildlife Refuge System, managed by the U.S. Fish and Wildlife Service, is the world's premier system of public lands and waters set aside to conserve America's fish, wildlife, and plants. Why not visit a national wildlife refuge in or near your community? A refuge is a place where you...
Grade Level   6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List
6
On our ever-changing Earth, conditions may change quickly or slowly. Some changes come from natural processes; some from human activity. Satellites allow us to see conditions and track changes over time — in land use, forest health, land/water interface, and so on. Since 1972, Landsat...
Grade Level   6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List
7
This tracking activity allows students to plot data points onto a tracking chart and map out the possible path of an oncoming hurricane. Meteorologists study the development and movement of hurricanes. This information is made available to the public through the National Hurricane Center which is...
Grade Level   7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List
8
Wetlands are called one of the world's most productive ecosystems. They produce more plant and animal life than woodlands or prairies. Characteristics, like water levels, naturally change seasonally and annually. Wetlands are in transition between aquatic and terrestrial systems where the water...
Grade Level   9 10 11 12
Classroom Activities Curricula and Instruction
Save to List
9
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...
Grade Level   7 8 9 10 11 12
Classroom Activities Curricula and Instruction
Save to List