A book falls off a desk. This moves the book toward the floor.
What is gravity
100
This is found at the end of a food chain.
What is a decomposer
100
The body system that sends electrical signals to all other body systems.
What is the nervous system
100
This has mass and takes up space
What is matter
100
The condition of the atmosphere at a certain time and place
What is weather
200
The y-axis on a Distance-Time graph shows
What is distance
200
Two of the three models that show the flow of energy in an ecosystem
What is a food chain, food web or energy pyramid
200
An amoeba is an example of a
What is a single celled or unicellular organism
200
The change from a liquid to a gas
What is evaporation
200
The tool used to measure air pressure
What is a barometer
300
The force that acts when two objects are touching each other
What is friction
300
A wolf is this type of organism
What is a consumer
300
The organisms that have specialized transport systems because they are not able to exchange gases with the outside environment.
What is a multicellular organism
300
This is responsible for the uneven heating of the Earth's atmosphere
What is convection
300
This type of pressure usually means fair weather
What is high pressure
400
You hit a ping pong ball and a bowling ball with a ping pong paddle. You use the same amount of force for each. This object will go farther and faster.
What is the ping pong ball
400
Dandelions and grass plants needing the same space in a lawn describes this relationship between some organisms
What is competition
400
This system transports gases throughout the body
What is the cardiovascular system
400
The process where plants release some water vapor into the air through tiny openings in their leaves
What is transpiration
400
A large body of air with about the same temperature and humidity throughout
What is an air mass
500
This can cause a moving object to increase its speed in a forward direction
A push in the direction the object is moving
500
Organisms that make their own food using sunlight
What is producer
500
The type of trait that a baby receives from its parents
What is an inherited trait
500
This type of change is what causes an apple to turn brown when it is cut.
What is a chemical change
500
A place where a cold air mass bumps up against a warm air mass usually bringing thunderstorms