An instrument that measures air pressure in the atmosphere.

The smallest unit that is able to preform the basic functions of life.

The temperature at which air with a given amount of water vapor will reach saturation.

Magnetism that results from the flow of electric charge.

The boundary between air masses.

The beginning of growth of a new plant from a spore or seed.

Layered lumps or balls of ice that fall from cumulonimbus clouds.

A simple machine that is a sloping surface, such as a ramp.

A wind that flows in the upper troposphere from west to east.

The energy of motion.

A solid bar that rotates or turns around a fixed point. One of the six simple machines.

Any device that makes doing work easier.

The unit that measures force.

An individual living thing, that is made up of one or many cells that is capable of growing and reproducing .

An animal that others hunt to eat.

An observation based on numbers.

A cold blooded vertebrate that has skin covered with scales or horny plates that has lungs.

A single reproductive cell that can grow into a multicellular organism.

A measure of the average amount of kinetic energy of the particles in an object.

Radiation of higher frequencies than visible light, which can cause sunburns and other types of damage.

Any factor that can change in a controlled experiment, observation, or model.

The horizontal line on the graph that has the manipulated variable on it.

The vertical line on the graph that has the dependent variable on it.

A wild horse with black and white stripes from Africa.