Q1 Science Review

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with their physical environment (air, water, soil).

Front

What are decomposers?

Back

Decomposers are organisms, like fungi and bacteria, that break down dead plants and animals, returning nutrients to the soil.

Front

Why are wetlands important for the environment?

Back

Wetlands provide habitat for many species, help filter pollutants, and protect against flooding.

Front

What happens to animals when their habitat is destroyed?

Back

Animals may die, migrate to new areas, or struggle to find food and shelter.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water through evaporation, condensation, and precipitation.

Front

How do fossils form?

Back

Fossils form when plants or animals are buried by sediment, which hardens over time into rock.

Front

What is the significance of finding ocean fossils in dry areas?

Back

It indicates that those areas were once covered by ocean water.

Front

What is habitat destruction?

Back

Habitat destruction is the process by which natural habitat is rendered unable to support the species present.

Front

What role do trees play in the environment?

Back

Trees provide oxygen, improve air quality, conserve water, preserve soil, and support wildlife.

Front

What is pollution?

Back

Pollution is the introduction of harmful substances into the environment, affecting air, water, and land.