The amount of air pressing down on a specific area.

The process by which water circulates between the earth's ocean, atmosphere, and land is the

The loss of water, as water vapor through leaves.

The process that occurs when gases in Earth's Atmsophere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere.

The energy is the energy of motion.

The process where a solid forms where the atoms or molecules are highly organized in a structure known as crystal.

The ratio of output work to input work.

The force applied when using simple machine.

This law states that, in any process energy is neither created nor destroyed. It can only be converted from one form to another.

The study of how scientist classify and name organisms is known as

This is stored energy of position is referred to as

An inherited characteristic that increases an organism's chance of survival.

A reaction due to a stimulus

The process where a sperm cell and egg cell join together to produce an offspring.

The growth or movement of an organism (usually a plant), in response to a stimulus.

The action that causes a response.

The process of plants making thier own food, using sunlight, carbon dioxide, and water.

An organism that can make its own food by using energy from the sunlight (chemical source) to drive the process.

Living things that get their energy from the food they eat.

When plants or animals break down sugar and use the energy to perform life functions.

Multicellular organisms are made of many parts that are needed for survival. These parts are divided into

Any so-called cold blooded animals; that is any animals whose regulation of body temperature depends on external sources, such as sunlight or a heated rock surface.

A type of animal that can generate its own body heat and has internal control over its body temperature.

The process that only involves one parent to produce an offspring.