Join Museum curator and geologist John Grant for an overview of NASA's ongoing rover missions to Mars and the exploration taking place on the Red Planet today.
This fun Web article is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about Earth science. Our Earth Is Always Changing looks at the fast changes produced by volcanoes and earthquakes and the much slower results of continental drift and mountain formation. A Peek Inside Our Planet explains and compares the Earth's four layers. Earth's Layers Work Together explores the role that each layer plays in the greenhouse effect, which makes life on Earth possible. Humans Are Just a Tiny Part of Earth's Long History puts the past 4.5 billion years into perspective.
Why S-Waves Only Travel in Solids. Created by Sal Khan.
Sea surface temperature is a critical variable that determines biogeographic and distribution patterns of marine organisms. Changes in temperature influence species reproduction and survival and can affect the spread of invasive species spread and marine diseases. As a result SST is a vital indicator of changes in ecosystem health and understand patterns and causes of change are necessary for conservation decisions. . In a previous activity (Working with Scientific Data Sets in Matlab: An Exploration of Ocean Color and Sea Surface Temperature), you downloaded and sub-scened global, annually averaged SST data. In addition to understanding the year-to-year variability in SST patterns, it is important to understand the SST variability over shorter time scales e.g. daily, seasonal). In this activity we will work with a daily imagery to understand intra-annual variability of SST and interpolate values for where data has not been collected.
This Yellowstone National Park website contains thousands of photographs of the Park. Images are organized by category including fire, thermal features, mammals, park structures, petrified trees, water, weather, scenics, and more. The photographs may be freely downloaded and more are being added through time.
The Mohorovicic Seismic Discontinuity- boundary between crust and mantle (or Moho). Created by Sal Khan.