A rainbow, a thunderstorm, and a solar eclipse are all natural phenomena.

Evaporation is the process by which water changes from a liquid to a gas.

Condensation is the process by which water changes from a gas to a liquid.

Precipitation is the process by which water falls from the sky.

Sublimation is the process by which a solid changes directly to a gas without passing through the liquid phase.

Deposition is the process by which a gas changes directly to a solid without passing through the liquid phase.

Weathering, erosion, and deposition are all processes by which rocks are broken down into smaller pieces.

Erosion is the process by which soil is carried away from one place to another.

Deposition is the process by which soil is deposited in a new location.

Photosynthesis is the process by which plants convert sunlight into energy.

Cellular respiration is the process by which animals convert food into energy.

Fermentation is the process by which yeast converts sugar into alcohol.

Weathering, erosion, and deposition are all processes by which rocks are formed.

Folding, faulting, and volcanism are all processes by which mountains are formed.

Weathering, erosion, and deposition are all processes by which valleys are formed.