Earth Sciences Resources

Although it covers nearly three-quarters of the Earth, scientists call the ocean our planet’s last frontier, and say that we know more about the moon then we do the seafloor. While oceanographers are racing to learn more about the deep …[Continue]

As a Californian, my life has been punctuated by earthquakes. My earliest temblor memory is the 1971 Sylmar quake. On that auspicious day I began my first job as a high school graduate. In the 1994 Northridge earthquake, my mother …[Continue]

The geologic time scale (GTS) is a system used by Earth scientists to organize the timing of events in Earth’s history. The largest defined unit is the supereon, which is composed of eons. Eons are divided into eras, which are …[Continue]

A river is a natural flow of water (usually freshwater) towards an ocean, sea, lake or another river. They are an important part of our ecosystem as a source of water, food, transportation, defense, energy, and recreation. Learn more at …[Continue]

A glass of water doesn’t seem very complicated. Yet water can be a fascinating topic, full of opportunities for hands-on learning. Today’s sites include dozens of activities and experiments for the young and curious ready to learn about the exciting …[Continue]

A cloud is a visible mass of condensed water vapor floating above the earth. In 1802, amateur meteorologist Luke Howard named three principal categories of clouds: cumulus, stratus, and cirrus. These categories became the basis of today’s cloud classification system, …[Continue]

Although it covers nearly three-quarters of Earth, scientists call the ocean our planet’s last frontier, and say that we know more about the moon then we do the sea floor. While oceanographers are racing to learn more about the deep …[Continue]

Photosynthesis is the chemical process used by plants (and a few other organisms) to convert sunlight, water, and air into the energy needed for the plant to grow and survive. Learn more with today’s crop of website picks….[Continue]