Forces and Motion
A change in an object's position
What is Motion
Clouds get too heavy and water falls to the ground as rain, sleet, or snow
What is Precipitation
The energy of moving particles
What is Heat Energy
the basic building blocks of living organisms; cells can carry out all processes necessary for life
What is cells
An area made of living and nonliving things
Ecosystem
a measure of how far an object moves in a certain amount of time;
What is speed
low, sheet like gray clouds that bring rain sometimes
What is Stratus clouds
The movement of heat
What is heat transfer
made up of only one cell
What is Unicellular
a living thing that gets energy by breaking down wastes and dead plants and animals
What is Decomposers
A force that acts again motion; causes objects to move slower and eventually stop moving
What is Friction
cold air mass bumps against a warm air mass, bringing strong storms ( thunderstorms or snowstorms)
What is a cold front
The transfer of heat through things that are touching
What is Conduction
controls all the body systems by transmitting electrical messages from the brain to other parts of the body; involves the brain, the spinal cord, and nerve cells
What is the Nervous System
the demand for a resource by two or more organisms
Competition
anything that takes up space
What is matter
The global winds that affect the United States
A chemical property of matter than cannot be observed without changing the matter into something else
What is Chemical Property
a characteristic that a living thing develops after it is born
What is an Acquired Trait
A model that shows how the amount of energy changes as energy moves through a food chain or food web
What is an Energy Pyramid
A force that pulls objects toward each other
What is Gravity
A large body of air with about the same temperature and humidity, or moisture, throughout
What is Air Mass
The transfer of heat by electromagnetic waves (sun or fire)
What is Radiation
how a living thing responds to its surroundings
What is Behavior
Forest, Rainforest, Grasslands , Deserts and Tundra are what kind of ecosystem?
What is Terrestrial Ecosystems