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Can You Judge a Geode by its Cover?

Geodes are formed in empty spaces inside rocks. Fluids containing minerals make their way into a rock’s cavity and crystals begin to grow. From the outside they look like an ordinary rock, although th ...

Limestone Formation

Limestone is composed of tiny shells that fell to the ocean’s floor when sea creatures died. The pressure from other shells, the water and sand washing over them squashes the tiny shells together into ...

Understanding Sonar Mapping of the Ocean Floor

Despite what early explorers thought, the world is definitely not flat!This includes land masses and the ocean floor.Just as there are mountains, valleys, and plains on dry land, the ocean floor is co ...

Let's Go Caving!

The formation of stalagmites and stalactites happens through the capillary action between porous rocks and water rich in minerals. The rocks attract the water and the moisture accumulates until gravit ...

Demonstrating Water Erosion Of Land Masses

Water has power! It has the power to shape the surface of the Earth. Water can change one landform by washing away sediment and then depositing it somewhere else to create a new landform. How are new ...

How Water Beats Rock

Rocks are ever changing.They can be smoothed by water, broken off by wind, and cracked by ice.If you found a rock in your backyard then traveled back in time 1,000 years, that rock would look totally ...

How Do Heat and Pressure Create Metamorphic Rocks?

By applying more and more pressure to a piece of aluminum foil “clay,” we can discover, stage by stage, how heat and pressure turn clay into slate, phyllite, and finally schist.It is an educational co ...

Create Your Own Miniature Salt Flats!

Create your own miniature salt flats at home.It is an educational content by education.com.By clicking on the title of this resource, you will be redirected to the content. If you want to download the ...

Popcorn Pumice: Exploring Different Rock Densities

Obsidian is basically “unpopped” pumice: obsidian and pumice are igneous rocks that are made out of the same material, but because of the way it’s formed inside the volcano, pumice looks very differen ...

How do Sedimentary Layers Form?

This project shows one way that sedimentary layers are formed as sediments (mud and silt, sand, pebbles and rocks, other ) settle over time.How do sedimentary layers form?It is an educational content ...

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