Row 1
This is the main source of energy for all life on Earth.
The Sun/Solar Energy
What process describes the movement of water from Earth's surface to the atmosphere and back?
The Water Cycle
What is water found below Earth's surface?
Groundwater
The process of water turning from liquid to gas is called
Evaporation
a large pieces of ice that move slowly across the ocean.
Glaciers
How long does it take for Earth to complete one revolution around the sun?
365¼ days
Which landform rises higher than 2,000 feet?
Mountain
What is the movement of sediment?
Erosion
is the area of land completely surrounded by water.
Island
the theory that suggests Earth's surface is divided into moving plates.
Plate tectonics
What percentage of Earth's water is freshwater?
About 3%
What is the process by which rock is broken down into smaller pieces?
Weathering
What is a group of plants and animals that depend on each other?
Ecosystem
This climate is the hottest and driest climate on Earth.
Desert
divides the Northern and Southern Hemispheres.
The Equator
What is the angle of Earth's tilt from vertical?
23½ degrees
What is the average weather conditions of a region over a long period called?
Climate
What are resources that the earth replaces naturally?
Renewable Resources
winds blow in the same direction over large areas of Earth.
Prevailing winds
the theory that all continents were once a giant super continent but slowly separated over the course of millions of years and are continuing to move.
The Continental Drift
Which of the following areas receives direct rays from the sun all year?
low latitude areas
Which climate zone occurs near the equator?
Tropical
What are resources that cannot be replaced?
Nonrenewable Resources
is larger than an ecosystem and may contain several ecosystems.
Biome
What type of calendar system do we use here in the Western World?
Greco-Roman or Gregorian Calendar