The wearing down of rocks over time by weather, water, and living things; (produces soil)
What is weathering?
100
Materials that plants and animals need to live and grow
What are nutrients?
100
In the summer, wind can suddenly develop, and the sky can quickly darken. Heavy rain (even hail) and lightning can be produced.
What is a thunderstorm?
100
The source of heat and light on Earth
What is: the sun?
100
Moisture that falls to the ground in the form of rain, snow, ice, or hail
What is precipitation?
200
The carrying away of broken pieces of earth caused by wind, water, and ice
What is erosion?
200
The deepest layer of soil made of rock
What is bedrock?
200
Cold temperatures with heavy snowfall and strong winds that can make it very hard to see your surroundings
What is a blizzard?
200
An image of an object created when light is blocked by that object
What is a shadow?
200
The decayed (once living) matter in soil that adds nutrients and is found mostly in topsoil; very good for growing plants
What is humus?
300
1. An instrument that shows how much rain has fallen;
2. An instrument that shows the temperature;
3. An instrument that shows the direction of the wind
What are: 1. a rain gauge; 2. a thermometer; 3. a wind vane?
300
The upper soil surface; best for plant growth
What is topsoil?
300
A funnel cloud that has very strong winds and moves along a narrow path; forms over land
What is a tornado?
300
This must be present in order to make a shadow.
What is: light?
300
3 factors that cause changes in weather
What are: wind, temperature, precipitation?
400
The process of what takes place when water is heated by the sun, and the water turns into a gas
What is evaporation?
400
The second layer of soil that is formed over a long time; can contain clay, sand, and silt
What is subsoil?
400
A tropical storm that forms over an ocean producing strong winds and heavy rains. Heavy rains can cause flooding, and the strong winds can knock down trees.
What is a hurricane?
400
1. The part of Earth facing the sun has this.
2. The part of Earth not facing the sun has this.
What are: 1. daylight; 2. nighttime?
400
This determines where you will find your shadow.
What is: the direction of the sun?
500
The process of changing a gas to a liquid in the form of small droplets
What is condensation?
500
5 components (ingredients) of soil
What are: rock, clay, silt, sand, humus?
500
When the land is very dry because of a lack of precipitation
What is a drought?
500
This causes Earth's day and night.
What is: the rotation of the Earth?
500
A period of suspended life processes brought on by changes in the environment