Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
What materials make up the inner core?
solid core of iron and nickel
What materials make up the outer core?
Melted metal of iron mixed with nickel
What materials make up the mantle?
rock and magma
What changes the earth's surface?
Water, wind, and ice, faults, earthquakes, tsunamis
What are the 3 layers of the earth made of?
Core, mantle, and crust
A ____________ is a flat, gently rolling landform
plain
Major landforms include ___________, hills, plateaus, and plains.
mountains
What is the difference between mountains and hills?
Hills are lower and more rounded but are still higher than the country around them.
Oceans, salt water, seas, gulfs, bays, straits, lakes, streams, rivers are examples of ________________
Water Bodies
Lakes, streams, and rivers are _____________ landforms
freshwater
99% of the atmosphere is made up of what two chemicals?
nitrogen and oxygen
True or False.
The atmosphere protects the earth so that all living things could survive.
True