Cycles of matter

Front

What is precipitation?

Back

Precipitation is any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface, including rain, sleet, snow, and hail.

Front

What is the purpose of photosynthesis?

Back

The purpose of photosynthesis is to use energy from the sun to produce food (glucose) for the plant.

Front

What is evaporation?

Back

Evaporation is the process by which liquid water is transformed into water vapor, often occurring when the sun heats water.

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria break down dead plants and animals, releasing nitrogen back into the atmosphere, which is essential for the nitrogen cycle.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting nitrogen gas from the atmosphere into a form that plants and animals can use.

Front

What is condensation?

Back

Condensation is the process by which water vapor cools and changes back into liquid water, forming clouds.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, involving processes like evaporation, condensation, and precipitation.

Front

What is runoff?

Back

Runoff is the flow of water, from rain or melting snow, that moves across the ground and returns to bodies of water.

Front

What is transpiration?

Back

Transpiration is the process by which water is absorbed by plant roots, moves through plants, and is released as vapor through pores in leaves.

Front

What is the role of producers in the ecosystem?

Back

Producers, such as plants, create their own food through photosynthesis and are the foundation of the food chain.