Epidote
This is a green stone. It can look like a nut. It is often a light green color. Some stones use it to look pretty. It is found in many rocks. Do you like green stones?
Early Reader · Change the reading level on the articleEarth Science articles — Page 14
Explore rocks, volcanoes, weather, oceans and the processes that shape Earth. Choose an article below; its reading controls let you move between the available levels.
1,427 public articles · Page 14 of 30
Eruption of Mount Vesuvius in 79 AD
A big mountain erupted long ago. It blew out hot ash. The ash covered old towns. It made the sky dark. This helps us learn about the past. Have you ever seen a volcano?
Early Reader · Change the reading level on the articleErythrite
This is a bright red rock. It looks like a pink flower. It grows in small crusts on other rocks. It can help people find silver. It is very pretty to see. Do you like the color red?
Early Reader · Change the reading level on the articleEscarpment
Some land has a big cliff. It separates two flat areas. One side is high up. The other side is low. This happens when rocks move. It can also happen from wind and rain. Do you like to climb hills?
Early Reader · Change the reading level on the articleEsker
An esker is a long ridge. It is made of sand and stones. It was made by water under ice. Now it looks like a long path. Some people build roads on them. Do you want to walk on one?
Early Reader · Change the reading level on the articleEtosha Pan
The Etosha Pan is a big, white place. It is a huge, dry bowl in the ground. It looks white and green. Birds and big animals visit when it rains. It is a very special place to see. Can you imagine a giant white bowl?
Early Reader · Change the reading level on the articleEurasian plate
A huge piece of land moves slowly. It holds most of Asia and Europe. It can push against other lands. This can make big mountains. It can even make volcanoes. We live on these big pieces. Can you feel the ground move?
Early Reader · Change the reading level on the articleEutrophication
Too much food can hurt water. Rain carries plant food into lakes. This makes too much green stuff grow. Then, the water loses its air. This is bad for fish. Can you help keep water clean?
Early Reader · Change the reading level on the articleEvaporite
Salt can form in the ground. It happens when water goes away. The sun dries up the water. Then, the salt stays behind. This makes hard rocks. Do you like salt?
Early Reader · Change the reading level on the articleEverglades National Park
The Everglades is a big park. It is in Florida. Many birds live there. Big alligators live in the water too. It is a special place for animals. Do you like to see animals?
Early Reader · Change the reading level on the articleExosphere
The air gets very thin far up. It is the top layer of our air. It meets the dark space. This layer helps our world. It is very hard to see. Can you imagine being that high?
Early Reader · Change the reading level on the articleExternsteine
Big rocks stand tall in the woods. They look like giant stone towers. People have lived near them for a long time. Some people even carved pictures in the stone. It is a very cool place to see. Do you want to visit them?
Early Reader · Change the reading level on the articleExtreme weather
Sometimes the weather is very strong. It can be very hot. It can be very cold. It can even bring big storms. This weather can change how we live. Have you seen big storms before?
Early Reader · Change the reading level on the articleExtrusive rock
Hot rock flows out of a volcano. It cools down very fast. This makes the rock very hard. It can even have tiny bubbles. Some rocks can float on water! Do you like looking at rocks?
Early Reader · Change the reading level on the articleEye (cyclone)
A big storm has a center. This part is called the eye. It is very calm there. The winds are light. The sky can be clear. It is a quiet spot in the storm. Can you see the eye?
Early Reader · Change the reading level on the articleFabric (geology)
Rocks have a special look. This is called fabric. It shows how parts sit inside. Some rocks have long bits. Some have flat bits. This helps us learn about them. Can you find a rock?
Early Reader · Change the reading level on the articleFacies
Rocks can look very different. Some rocks have special shapes. Other rocks have tiny shells in them. These changes tell us about the past. They show us how the land used to be. Do you like looking at rocks?
Early Reader · Change the reading level on the articleFarallon plate
A big piece of the Earth moved. It slid under our land. It helped make big mountains. Now it is in small pieces. This helps us learn about our world. Do you like mountains?
Early Reader · Change the reading level on the articleFault block
The Earth has big pieces of rock. These pieces can move. They can go up or down. This makes big hills and valleys. These shapes change how our world looks. Can you find a big hill?
Early Reader · Change the reading level on the articleFayalite
This is a special rock. It has a lot of iron in it. It can be found in hot, melted rocks. The iron helps it stay strong. It is very neat to see! Do you like looking at rocks?
Early Reader · Change the reading level on the articleFeldspathoid
Some rocks look like other rocks. They are found in rare places. They do not have much sand in them. These rocks are very special. We can look for them. Do you like looking at rocks?
Early Reader · Change the reading level on the articleFen
A fen is a wet place. It has lots of water and mud. Many plants like grass grow here. It helps many rare animals live. We must keep these places safe. Do you like wet places?
Early Reader · Change the reading level on the articleFigure of the Earth
The Earth is a big round ball. It is not a perfect ball. It is a little bit flat at the top and bottom. This helps us make good maps. Do you like looking at maps?
Early Reader · Change the reading level on the articleFilchner–Ronne Ice Shelf
There is a huge shelf of ice. It is in a cold place. It grows all the time. Big pieces of ice can break off. These pieces float away in the sea. It is a very big thing to see! Do you like the cold?
Early Reader · Change the reading level on the articleFingal's Cave
There is a big cave in the sea. It is made of tall rock poles. The sea fills the cave. It makes very loud sounds. You can see it on a boat. Do you want to visit it?
Early Reader · Change the reading level on the articleFire whirl
A fire whirl is a spinning wind. It looks like a tall tube. It is made of fire and smoke. The wind spins very fast. It can move wood and trees. It is a wild thing to see. Have you ever seen spinning smoke?
Early Reader · Change the reading level on the articleFlash flood
Water can rise very fast. Heavy rain makes this happen. It can fill up dry places. This happens in just a few hours. It can be very dangerous. Stay away from fast water. Have you seen a big storm?
Early Reader · Change the reading level on the articleFlat coast
Some coasts are very flat. The land goes slowly into the sea. It is made of sand and small rocks. The waves move the sand around. This helps the land grow. Do you like to play in the sand?
Early Reader · Change the reading level on the articleFlint
Flint is a hard stone. It can be many colors. You can find it at the beach. People use it to make sharp tools. It can also make sparks for a fire. It helps us stay warm. Can you find a stone like this?
Early Reader · Change the reading level on the articleFlood basalt
Hot, melted rock flows from the ground. It covers a lot of land. The rock looks like big steps. This can change the whole world. It is very big and strong. Have you ever seen big rocks?
Early Reader · Change the reading level on the articleFluorapatite
This is a hard rock. It can be many colors. It is part of your teeth. It helps keep your teeth strong. It even helps stop germs. Do you brush your teeth with paste?
Early Reader · Change the reading level on the articleFluorite
Fluorite is a pretty stone. It can be many colors. Some are purple or blue. Some are even green. People use it to make glass. It is a special treasure. Do you like bright colors?
Early Reader · Change the reading level on the articleFocal mechanism
An earthquake moves the ground. It can shake up or down. We can see how it moves. This helps us learn about the Earth. It is like a puzzle. Do you want to be a scientist?
Early Reader · Change the reading level on the articleFold mountains
Big mountains can form in a special way. Large pieces of the Earth move. They push into each other. This makes the rocks crumple like a cloth on a table. This makes the land rise up high. Can you see the big hills?
Early Reader · Change the reading level on the articleFoliation (geology)
Some rocks have many layers. These layers look like thin sheets. Big pressure makes them. It can push the rock. This helps us learn about the ground. Do you see layers in rocks?
Early Reader · Change the reading level on the articleFontaine de Vaucluse (spring)
A big spring flows in France. It is a very large spring. It brings lots of water out. The water comes from deep underground. It helps make a river. It is a pretty place to see. Can you find it on a map?
Early Reader · Change the reading level on the articleForearc
The earth has many parts. This part is near big volcanoes. It sits between a deep trench and the mountains. This area can have strong shakes. It is a busy place! Can you imagine the ground moving?
Early Reader · Change the reading level on the articleForeland basin
Big mountains are very heavy. Their weight bends the ground. This makes a deep dip. This dip is a basin. Rocks and sand fill it up. It can be very deep. Do you like big mountains?
Early Reader · Change the reading level on the articleForensic geophysics
People use tools to look under the ground. They find things that are hidden in the dirt. These tools can find metal or old things. This helps people solve mysteries. It is like having magic eyes. Can you find…
Early Reader · Change the reading level on the articleForeshock
Sometimes the ground shakes a little bit. This small shake comes before a big one. It can happen in a few days. It can even take years. We learn about these small shakes to stay safe. Can you feel the ground shake?
Early Reader · Change the reading level on the articleForsterite
This is a special rock. It can be found deep in the Earth. It is also in space! Some of it looks like a pretty gem. We can find it in stars too. Do you like shiny rocks?
Early Reader · Change the reading level on the articleFossa Magna
Japan has a big crack in the land. It is a very large area. This place has many kinds of rocks. You can see them in a park. It is a special place to visit. Do you like looking at rocks?
Early Reader · Change the reading level on the articleFracture (geology)
Rocks can break into pieces. This makes a crack. The crack can be a deep line. It happens when the rock is pushed too hard. These cracks help water move through the ground. Can you find a crack in a rock?
Early Reader · Change the reading level on the articleFractus cloud
Small clouds look like torn cotton candy. They break off from big clouds. Strong winds make them look ragged. They change shape very fast. You can see them in the sky. Do you see small clouds today?
Early Reader · Change the reading level on the articleFrancis Beaufort
Francis Beaufort was a man of the sea. He made maps for ships. These maps help boats stay safe. He also made a way to measure wind. This helps us know the weather. Do you like to look at maps?
Early Reader · Change the reading level on the articleFranz Josef Glacier
This is a giant river of ice. It flows down from high mountains. The ice is very cold. It sits near green trees. You can see it from a helicopter. Do you like the snow?
Early Reader · Change the reading level on the articleFrasassi Caves
There are big caves in Italy. They are deep under the ground. Water makes tall rocks inside. Some rocks look like candles. They are very cool to see. Do you want to go inside?
Early Reader · Change the reading level on the articleFreezing rain
Rain falls from the sky. It hits things that are cold. Then the rain turns to ice. The ice covers trees and cars. It can be very heavy. It makes the roads slippery. Have you seen ice on a tree?
Early Reader · Change the reading level on the article