The earth's atmosphere
By: Jose Juan Gutierrez
The Earth's atmosphere consists of a thin layer of gases surrounding the Earth. Most gases surrounding the Earth are held in place by gravity. The most abundant gas in the Earth's atmosphere is nitrogen, accounting for 78%, followed by oxygen with 21%, argon with 0...
How do we know the global climate is changing?
By: Christyl Rivers
Since the record heat, fires and droughts of 2012, the freak storms and swarms of tornadoes, floods, hurricanes such as Sandy and its aftermath, and much more, there are fewer skeptics about climate change. There is still however, a great deal of useless discussion over...
What is a coral reef ecosystem?
By: Jose Juan Gutierrez
A coral reef ecosystem consists of marine structures made of calcium carbonate secreted by living organisms. Most coral reefs are built by stony corals. Stony corals consist of hundreds of thousands of small animals known as polyps that form colonies on the reefs. The coral...
How lightning can strike on a cloudless day
By: Sandy Virtue
We have all read stories about lightning striking on a cloudless day. These streaks of lightning are often referred to as “bolts from the blue” since they seem to come out of a clear blue sky. This is where bolts or streaks of lightning...
How lightning can strike on a cloudless day
By: Kimberly Napier
Lighting is produced by thunderstorms and are represented by a flash of electricity. When there is a thunderstorm there are lightning strikes. Each flash of lighting is considered to be very dangerous and have killed between 75 to 100 people each year, more than hurricanes...
By: Zacharie King
Sedimentary rocks are the most common rock type found on the planets surface comprising nearly 70 percent of all surface rocks. Sedimentary rocks are created from layers of sediments accumulating and being compressed together over time. While all sedimentary rocks form in a similar fashion...
Features of sedimentary rocks
By: Kimberly Napier
Rocks break into smaller pieces by many different processes, but no matter what process it has gone through, the smaller pieces of rock are called sediment. The sediment can also include organic material, such as plant parts. A sedimentary rock is a rock that is...
By: Zacharie King
Lightning is one of the most powerful and dangerous forces of nature on the planet. On a typical year it will kill more people then tornadoes or hurricanes which is amazing considering the destruction those storms do. With hurricanes and tornadoes there is often warning...
The effects of overfishing on coral reefs
By: Jose Juan Gutierrez
Coral reefs are marine ecosystems that are important for recreational, tourism, commercial, and fishery industries around the world. Diverse plants and marine animals in the coral reef ecosystem provide a rich resource from where scientists obtain natural products to treat a wide variety of diseases...
By: Kimberly Napier
When examining a soil profile, scientists look at the different soil horizons, or the layers of soil or the soil's materials which, to some degree, parallel the land surface. There are differences in the different horizons like color, structure, texture and consistency, as well as...

 

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