An example of this is: A weed grew up through a sidewalk crack and eventually caused the sidewalk to split.
What is weathering?
100
Water that falls from the sky and reaches the ground.
What is precipitation?
100
Large, violent storms that are created over warm water with low air pressure in the center or eye.
What is a hurricane?
100
Distance divided by time equals this.
What is speed?
100
Reindeer, caribou, and arctic foxes can be found in this biome.
What is tundra?
200
The process that takes place when a nail turns to rust.
What is oxidation?
200
During the day, land heats up causing the air above it to rise, and cool air from the ocean replaces it creating this.
What is a sea breeze?
200
A tool used to measure air pressure.
What is a barometer?
200
A force that reduces the motion of an object.
What is friction?
200
This biome contains the largest variety of plants and animals on earth.
What is the tropical rainforest?
300
Powerful ocean waves beat against a rocky sea cliff is an example of this.
What is erosion?
300
Clouds that cover the sky in a layer are called this.
What is stratus?
300
This kind of weather is associated with high air pressure.
What is clear and sunny?
300
This law states that an object in motion has a tendency to stay in motion, and an object at rest tends to stay at rest unless an unbalanced force acts upon it.
What is inertia?
300
Characteristics that allow organisms to survive in their environment.
What are adaptations?
400
Over millions of years, this created the Grand Canyon.
What is a river.
400
Thin, wispy clouds that are formed high in the atmosphere are called
What is Cirrus?
400
Fast moving narrow zones of air in the troposphere which moves weather systems around the earth.
What are jet streams?
400
When this force is applied, it causes an object to move in the direction of that force.
What is unbalanced force?
400
All the living and nonliving things in an environment and how they interact with one another.
What is ecosystem?
500
The deposition of sediment at the mouth of a river causes this to form.
What is a delta?
500
This cloud produces thunderstorms.
What is cumulonimbus?
500
The beginning of all weather.
What is the sun?
500
Fixtures with little to no moving parts and make work easier.
What are simple machines?
500
A cool forest biome of conifers in the Northern Hemisphere?