How Are Fossils Formed
A fossil is the remains of plants and animals preserved in rock. Sometimes they take the form of shells, bones, scales, or other hard parts of animals. …
How
How Was The Grand Canyon Formed
The Grand Canyon in Arizona is a natural wonder of the world. At some points, it appears like a magic city of rock, with temples, towers, and …
How Does An Earthquake Start
You can get a pretty good idea of what causes an earthquake from thinking about what happens during an earthquake. During an earthquake, there is a trembling …
How Does A Glacier Move
Glaciers are not a rarity today. The most common type is called “valley glaciers”. In the Alps alone there are more than 1,200 valley glaciers, and in …
How Does A Volcano Form
In February 1943, in the middle of a cornfield in Mexico, people saw a rare and amazing thing taking place. A volcano was being born! In three …
How Were The Oceans Formed
There are many things about our own earth that still remain a mystery to us, and one of them is how the oceans were formed. Actually, we …
How Do Rivers Form
Rain and other water on the earth’s surface are constantly being carried off. Rivers are the larger streams that accomplish this task. Streams smaller than rivers are …
How Did Ancient Astronomers Picture The Universe
It is much harder for us to understand the universe as we know it today than it was for ancient man to grasp his idea of the …
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How Many Stars Can We See At Night
“Countless as the stars at night.” This is the impression we pet of the sky when we look up at night and see the stars. But it …
How Hot Is The Sun
It is rather hard for us to realize that our sun is merely just another star in the sky. This is probably because we think of the …
How Long Will The Sun Last
How can we even think about the sun in this way? Won’t the sun last forever? The reason science can consider this question is that we know …
