force and Motion
Sound and light
Information Processing in Animals
Electricity
Structures and Functions of plants
100

A change of velocity over time.

Acceleration

100

a wave vibrating in the same direction that the energy moves.

Longitudinal Wave

100

Organ in the nervous system that interprets messages received from and sends messages to other body organs.

brain

100

A path through which electric current can flow.

Circuit

100

A trait that helps a living thing survive in its environment.

Adaptation

200

A push or pull.

Force 

200

A substance through which waves travels.

medium

200

A part of the nervous system made up of the brain and spinal cord.

Central nervous system

200

A material through which energy flows easily.

conductor

200

A reaction to a stimulus.

Reponse

300

A force between surfaces that slows objects or stops them from moving.

friction 

300

a device that uses light from the sun to produce electricity.

Solar cell

300

The process of finding an object by using reflected sound.

Echolocation

300

A flow of electricity through a conductor. 

electric current  

300

Something in the environment that causes an action.

stimulus

400

the tendency of an object in motion to stay in motion or of an object at rest to stay at rest.

Interia 

400

A wave that transfers energy through a material and spreads outward in all directions from a vibration.

Sound Wave

400

The set of organs that uses information form the senses to control all body's senses.

Nervous System

400

A material that slows or stops the flow of energy such as electricity or sound. 

Insulator

400

The release of water vapor mainly through the small openings on the underside of leaves that drives the movement of material throughout a plant.

Transpiration

500

The change of an objects position.

Motion 

500

A back-and-forth motion.

Vibration

500

A thick bundle of nerves inside the spine. 

Spinal Cord

500

An object in an electrical circuit that resists the flow of energy.  

Resistor

500

A plant's response to water, gravity, light, and touch

Tropism