Earth Science : Types of Rock

The video explores the Geology Learning Center, focusing on the three types of rocks: sedimentary, igneous, and metamorphic. It explains how sedimentary rocks form from layers of sediment, often containing fossils that provide clues about past environments. Fossil fuels like coal and oil originate from these rocks. Igneous rocks form from cooled magma or lava, with volcanic rocks like basalt being common. Metamorphic rocks result from existing rocks undergoing heat and pressure, altering their structure. The video concludes with a musical recap of the rock types.

What type of rock is formed from layers of sediment being pressed together over time?

• Sedimentary rock

• Metamorphic rock

• Volcanic rock

• Igneous rock

How can fossils provide clues about the past environment?

• By showing the color of the rocks

• By displaying the temperature of the Earth

• By revealing the types of plants and animals that existed

• By indicating the age of the Earth

What are fossil fuels primarily made from?

• Volcanic ash

• Molten lava

• Crystals

• Compressed plants and animals

What is the most common type of volcanic rock found on the ocean floor?

• Slate

• Basalt

• Granite

• Marble

What is magma called when it reaches the Earth's surface?

• Crystal

• Ash

• Sediment

• Lava

How are metamorphic rocks formed?

• By deposition of minerals

• By heat and pressure changing existing rocks

• By compression of sediment

• By cooling of lava

Which of the following is an example of a metamorphic rock?

• Sandstone

• Slate

• Granite

• Basalt