2.2 Earth Structure

Front

What is the biosphere?

Back

The biosphere is the sphere of Earth that supports living things, including all ecosystems and organisms.

Front

What is the lithosphere?

Back

The lithosphere is the sphere of Earth that contains rocks and stones, including all the mountains and land we can see.

Front

What causes heat transfer by convection?

Back

Heat transfer by convection is caused by differences in temperature and density.

Front

What are tectonic plates?

Back

Tectonic plates are the pieces of the lithosphere that move around on top of the asthenosphere.

Front

How many parts does the Earth's core have?

Back

The Earth's core has 2 parts: the inner core and the outer core.

Front

What is the hydrosphere?

Back

The hydrosphere is the sphere of Earth that includes all water bodies, such as oceans, rivers, lakes, and glaciers.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for weather and life.

Front

What is the asthenosphere?

Back

The asthenosphere is the semi-fluid layer of the mantle beneath the lithosphere, allowing tectonic plates to move.

Front

What is the difference between the inner core and outer core?

Back

The inner core is solid and made of iron and nickel, while the outer core is liquid and also composed of iron and nickel.

Front

What role do tectonic plates play in earthquakes?

Back

Tectonic plates can cause earthquakes when they move and interact at their boundaries.