The Water Cycle
____% of the surface of the Earth is water.
75
What are the 3 main layers of Earth?
The core, mantle, and crust
What are the 3 types of rocks?
Igneous, Metamorphic, and Sedimentary
What is the name of the theory that astronomers use to explain how the universe began?
The Big Bang Theory
Describe the galaxy we live in. (name and shape, for example)
The Milky Way, which is in a spiral shape
When it comes to the water cycle, what role does the sun play?
The sun provides energy that helps evaporate water and heats land.
What is the term tectonic plates mean?
Tectonic plates are the movement of the plates on the Earth's crust.
What do rocks need to become metamorphic rocks?
Heat and pressure
The sun is made of _____.
gas
I will also accept "75% hydrogen and 25% helium".
What are two examples of metamorphic rocks?
Examples can include marble, slate, and quartz.
Name at least two natural sources we get our water from.
Any 2:
springs, streams, creeks, rivers, lakes, or oceans
Compare the two types of crust.
Oceanic crust is much thinner than the continental crust.
What are rocks made of?
One or more minerals
What is nuclear fusion?
Nuclear fusion is when hydrogen atoms fuse together to make helium and lots of energy.
What did the balloon lab demonstrate?
The balloon lab demonstrated Hubble's law or how the galaxies that are farther away seem to be moving away the fastest.
I will also accept how the universe is expanding.
What is the difference between condensation and precipitation?
Condensation is the change from a vapor to a condensed state (solid or liquid). Evaporation is the change of a liquid to a gas.
What are the differences between the inner core and outer core?
The inner core is a solid piece of metal, whereas the outer core is made of liquid metal.
Describe a sedimentary rock. What are they and what do they look like?
A sedimentary rock usually has a rough or grainy texture with layers of color.
What effects does solar activity (solar winds, solar flares, sunspots, prominences) have on the Earth?
Auroras
satellite and communication disruptions
Explain what is convection. We see it in the sun and Earth.
Convection is when the heat rises and the cool matter sinks.
Describe the journey water takes in the water cycle to end up in a river. Use appropriate vocabulary with details about the stages in the water cycle.
Answers will vary.
What is Pangaea?
Pangaea is the supercontinent that was once formed when all the continents were connected.
What are two types of igneous rocks? Describe them both.
Extrusive igneous rocks: when lava is cooled outside of the crust
Intrusive igneous rocks: when magma is cooled underground
Name one piece of evidence that supports the Big Bang Theory.
Any 1 of the following:
Measurable expansion of the universe (Red shift of galaxies)
Cosmic microwave background radiation
Relative abundance of hydrogen and helium
Explain the differences between divergent, convergent, and transform boundaries.
Divergent boundaries pull away from each other.
Convergent boundaries come together.
Transform boundaries slide horizontally past each other.