Details on the different types of maps, scale, and symbols.

A map of Asia from 1872, showing physical features including mountain systems, deserts, lakes, rivers with direction of flow, coastal features, and ocean currents, political boundaries and foreign possessions at the time, and commercial...

A map from 1899 of North America, Central America, and the Caribbean showing national boundaries, capitals and major cities, terrain, lakes, rivers, and coastal features. The map shows longitude from Greenwich at the top of the map, and...

Map of pre-colonial Africa, showing the predominately native countries and territories of the African continent in 1879. The counties include the Barbary States of Morocco, Algeria, Tunis, Tripoli and Fezzan, the Egyptian territories of...

A commercial map from 1872 of the United States showing the principal railroad and steamship routes in the region at the time. The map shows state boundaries and capitals, major cities and ports, submarine telegraph cables to Europe,...

A map from 1872 of Mexico, showing states and state capitals, major cities, towns, and ports, railroads, lakes and rivers, mountain systems, terrain, and coastal features. Steamship routes to major ports are shown, with distances marked...

Using a geologic time scale and map students investigate the rocks in their area.

The National Weather Service presents this site on synoptic meteorology, large-scale weather systems. Learn about the structure and behavior of the atmosphere, including clouds, precipitation, winds and more. Also includes learning...

Students develop and apply the distance formula and an x-y coordinate plane on a hurricane tracking map, and then use a map scale to determine distance in miles. Then, using MATLAB computer science programming language, students help...

The National Weather Service presents this site on synoptic meteorology, large-scale weather systems. Learn about the structure and behavior of the atmosphere, including clouds, precipitation, winds and more. Also includes learning...

Students learn and practice how to find the perimeter of a polygonal shape. Using a ruler, they measure model rooms made of construction paper walls. They learn about other tools, such as a robot, that can help them take measurements....

Asteroid Impact is an 8-10 class long (350-450 min) earth science curricular unit where student teams are posed with the scenario that an asteroid will impact earth. They must design the location and size of underground caverns to save...

A suite of lessons focusing on all aspects of earthquakes. Inquiry-based exploration of earthquakes includes measuring seismic waves, predicting earthquakes, investigating magnitude and intensity, mapping fault lines, and evaluating...

The Alberta Airphoto Collection consists of around 30,000 public domain images from the University of Calgary Library's collection of airphotos. The images cover urban areas at various scales and years between 1924 and 1952. These...

The Kelvin, Celsius and Fahrenheit temperature scales are discussed. Site lists and explains formulas for converting between the different scales.

Geologists generally know the age of a rock by determining the age of the group of rocks, or formation, that it is found in. The age of formations is marked on a geologic calendar known as the geologic time scale. Development of the...