Lesson 2.1 The Earth Inside Out Flashcards
The Earth is what planet in the solar system
The third planet
How far away from the Sun is the Earth?
93 million miles
What does the solar system consist of?
The sun and 8 regular planets, as well as other celestial bodies that orbit the Sun
What’s at the center of the earth?
The core
What is the core mostly made up of
Iron and nickel
Describe the outer and inner core
The outer core is liquid but the inner core is solid
What surrounds the core
The mantle
Which layer inside the Earth contains most of Earth’s mass
The mantle
What is the crust and how thick is it
The crust is a thin layer of rock at the Earth’s surface, usually 19 to 37 miles thick, making it the thinnest part of Earth’s interior
What is the atmosphere
The layer of gases surrounding the earth containing oxygen and protecting the Earth from radiation and space debris
What is a lithosphere?
The solid rock portion of the Earth’s surface which includes the crust and uppermost mantle
How many continents are there
7
What is a hydrosphere
All the water elements on Earth including ocean Seas rivers lakes and water in the atmosphere
What forms the biosphere, the part of Earth or plants and animals live?
The atmosphere, lithosphere, and hydrosphere form the biosphere
What is Continental drift?
The separating or breaking apart of one large landmass, called pangea, into since seven distinct continents
