Search Results | geologic time scale
Your search for "geologic time scale" returned 80 results
How the Mohs Scale Ranks Hardness
science.howstuffworks.com/environmental/earth/geology/mohs-hardness-scale.htm
The Mohs hardness scale is used by geologists and gemologists as a way to help identify minerals using a hardness test. How does it work?
What Would Happen if the Earth Stopped Rotating?
science.howstuffworks.com/science-vs-myth/what-if/what-if-earth-stopped-spinning.htm
You can say goodbye to the seven continents and hello to days that seem infernally long. What else awaits you on a spin-free Earth?
What Causes the Tectonic Plates to Move?
science.howstuffworks.com/environmental/earth/geology/plate-tectonics.htm
Discover the origins of the continental drift theory and how scientists explain these geologic phenomena.
How Earthquakes Work
science.howstuffworks.com/nature/natural-disasters/earthquake.htm
An earthquake is one of the most terrifying phenomena that nature can dish up. We generally think of the ground we stand on as "rock-solid" and completely stable. An earthquake can shatter that perception instantly, and often with extreme violence.
How Supervolcanoes Work
science.howstuffworks.com/nature/natural-disasters/supervolcanoes.htm
Only a few natural events pack the power to knock global civilization on its heels. One is a planet-killing meteor. Care to guess the other?
How Does a Seismograph Work?
science.howstuffworks.com/environmental/earth/geophysics/question142.htm
A seismograph can accurately measure the movement of the Earth during a quake. How does a seismograph work, though, and what is the Richter scale that is associated with earthquakes? Learn the answers to these questions in this article.
How much energy in a hurricane, a volcano, and an earthquake?
science.howstuffworks.com/environmental/energy/energy-hurricane-volcano-earthquake.htm
Energy has been on everybody's minds lately, probably because our society is in a transition period, trying to move from polluting sources to cleaner ones.
Turns Out Earth's Pulse 'Beats' Every 27.5 Million Years, But Why?
science.howstuffworks.com/environmental/earth/geophysics/earths-pulse.htm
Researchers have been asking this question for almost a century and now we're a little closer to the answer. Something else to ponder: Every 27.5 million years there is usually a mass extinction.
Fact or Fiction: Earthquakes
play.howstuffworks.com/quiz/earthquake-quiz
Earthquakes, like volcanoes, happen all the time -- but most of them are so minor we can't even feel them. They're also similar to volcanoes in that we can't fully predict them, and scientists are always waiting for the next big one to occur.
Which Famous Mountain Matches Your Personality?
play.howstuffworks.com/quiz/which-famous-mountain-matches-your-personality
Are you an unattainable peak or an active volcano about to blow? What experience do climbers have when they try to scale the heights of your personality? Take a trek through this quiz to find out!