Shaky Ground
This outermost, thinnest layer of the Earth is the one we live on.
what is the crust
This major type of rock forms from the cooling and hardening of magma or lava.
What is igneous rock
This process breaks down rocks into smaller pieces via wind, water, or ice.
what is weathering
This is the primary source of energy and heat
what is the sun
It takes the Earth exactly 365.25 days to complete one of these trips around the Sun
what is revolution
This is the thick, hot layer of rock found directly beneath the Earth's crust.
what is the mantle
This property describes how easily a mineral can be scratched, often measured on the Mohs scale
what is hardness
This is the movement of rock particles and sediment from one location to another by wind, water, or gravity
what is erosion
This is the most abundant gas found in Earth's atmosphere, making up about 78% of the air.
what is nitrogen
Earth experiences day and night because it spins on its axis, a movement known by this term
what is rotation
This type of plate boundary occurs when two tectonic plates collide into each other.
what is a convergent boundary
These rocks form over time from compressed and cemented layers of sand, mud, and pebbles
what is sedimentary rock
This process occurs when wind or water drops sediment in a new location, building up new landforms
what is deposition
This layer of the atmosphere is closest to Earth and is where all our weather happens
what is the troposphere
This is the main reason why Earth has four distinct seasons throughout the year.
what is the tilt of earth's axis
This circular heat transfer process in the mantle forces tectonic plates to move.
what is convection
Intense heat and pressure deep underground change existing rock into this specific rock type.
what is metamorphic rock
This giant, slow-moving mass of ice carves out distinct U-shaped valleys as it moves.
what is a glacier
What is the "shield" in our atmosphere, protecting us from harmful UV?
what is the ozone layer
This celestial event happens when the Moon passes directly into the Earth's shadow?
what is a lunar eclipse
This supercontinent existed millions of years ago before splitting into our current continents
what is pangea
This is the term for the continuous, natural process where rocks change from one type into another.
what is the rock cycle
Acid rain dissolving limestone underground creates this subterranean geographic feature
what is a cave
What layer of the atmosphere do your see the northern lights?
what is the thermosphere
What moon phase is it when the moon is between the sun and earth?
New Moon