earth's spheres

What are the 4 main Earth systems?

Geosphere, Biosphere, Hydrosphere, Atmosphere

What is the geosphere?

All the solid parts of Earth (rocks, soil, mountains, core)

What is the biosphere?

All living things (plants, animals, humans)

What is the hydrosphere?

All water on Earth (oceans, rivers, lakes, water vapor)

What is the atmosphere?

The layer of gases (air) around Earth

What does the hydrosphere help do?

Keeps Earth’s temperature moderate

What does the atmosphere protect us from?

Harmful radiation from the sun

What is the atmosphere made of?

Oxygen, nitrogen, carbon dioxide, water vapor, dust

What is an interaction between spheres?

When two spheres affect each other

Example: tree growing in soil → what spheres?

Biosphere + Geosphere

Example: flower absorbing water → what spheres?

Biosphere + Hydrosphere

Example: deer breathing air → what spheres?

Biosphere + Atmosphere

Humans belong to which sphere?

Biosphere

Can humans affect other spheres?

YES—all of them (atmosphere, geosphere, hydrosphere)

Example of humans affecting Earth?

Pollution or reducing pollution (like recycling)

What are parts of the geosphere?

Crust, mantle, outer core, inner core

What are the two types of crust?

Oceanic crust & continental crust

What are the main layers of the atmosphere?

Troposphere, Stratosphere, Mesosphere, Thermosphere

Which layer has the ozone layer?

Stratosphere

What does the ozone layer do?

Protects us from the sun’s radiation