The energy from the sun.
What is solar energy?
This takes Earth 3651/4 days to complete; it is a trip around the sun.
What is revolution?
This is the season Australia currently is in.
What is winter?
These areas of land are completely surrounded by water.
What are islands?
This is the longest river in the world.
What is the Nile?
Water that is found in Earth's streams, rivers, and lakes.
What is surface water?
These are large areas of slow-moving ice.
What are glaciers?
All living beings on this Earth require this to survive.
What is solar energy?
These natural disasters often take place along faults, or breaks in Earth's crust where movement occurs; they are often violent.
What are earthquakes?
This is the hottest continent of Earth.
What is Africa?
The movement of water from Earth's surface to the atmosphere and back.
What is the water cycle?
This is a form of freshwater we use everyday, and is located in lakes, streams, and rivers.
What is surface water?
This is the idea that the continents have traveled a great distance over the span of 200 million years.
What is continental drift?
These are the names of the five oceans.
What is the Pacific, Atlantic, Indian, Arctic and Southern (Antarctic)?
This theory suggests that Earth's surface is divided into a dozen or so slow-moving plates, or pieces of Earth's crust.
What are plate tectonics?
The process by which rock is broken down into smaller pieces.
What is weathering?
These lakes were formed when glaciers carved deep holes in Earth's surface and deposited water as they melted. (hint: It's in the Northeast)
What are the Great Lakes?
This is how many degrees the Earth is tilted in order to support life. (Otherwise we would just melt into a pile of goo.)
These two countries are located south of China, and are constantly fighting each other. One is a Communist country, and the other is a Capitalist country.
The movement of sediment from one location to another.
What is erosion?
Water found below Earth's surface.
What is groundwater?
This gaseous star drives the water cycle.
What is the sun?
These are the two seasons where the axis is tilted neither toward or away from the sun; it's sort of in the middle.
What is spring and fall?
This is the capital of Vietnam.
What is Hanoi?