Weathering
the process of breaking down or dissolving rocks and minerals
What is weathering?
makes up the major land masses on Earth that are exposed to the atmosphere
What is continental crust?
the biggest object in the solar system
What is the sun?
the most massive stars collapse into themselves creating a bottomless well of gravity called a...
What is a black hole?
the path an object follows around another object, such as a star
What is orbit?
takes place when the minerals inside of rocks go through changes caused by chemical reactions
What is chemical weathering?
the crust that forms the vast ocean floors
What is oceanic crust?
the hottest planet in the solar system
What is Venus?
the way in which stars are classified based on their surface temperature
What are spectral classes?
this planet makes an orbit around the sun every 365 days
What is Earth?
this type of weathering breaks larger rocks into smaller pieces
What is mechanical weathering?
this type of rock makes up about 90% of Earth's crust
What is igneous rock?
Jupiter, Saturn, and Uranus are big and made of gas so they are called the...
What are gas giants?
the way in which stars are classified based on the amount of light they emit
What is luminosity?
the invisible line around which our planet spins
What is the axis?
happens when plants, animals, and other living things cause larger rocks to be broken into smaller pieces
What is biological weathering?
when molecules or atoms are arranged in a regular repeating pattern
What are crystals?
this planet only takes 88 days to orbit the sun
What is Mercury?
this generates a star's heat and energy and causes it to shine
What is thermonuclear fusion?
half of the Earth
What is a hemisphere?
this famous canyon was formed by the process of mechanical weathering
What is the Grand Canyon?
the innermost layer of the Earth
What is the inner core?
this planet is tilted so much that it spins sideways
What is Uranus?
hot cores formed by the collection and collapse of dust and gas
What are protostars?
the season we are experiencing right now is caused by the amount of ______ _______ we are getting
What is direct sunlight?