(6th) Topic 4 Review

Front

What is convection?

Back

Convection is the process of heat transfer through the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a cycle.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. Heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of energy through space in the form of electromagnetic waves. It does not require a medium to travel.

Front

What is the Greenhouse Effect?

Back

The Greenhouse Effect is the process by which certain gases in Earth's atmosphere trap heat, keeping the planet warm enough to support life.

Front

What are the main components of Earth's atmosphere?

Back

Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and 1% other gases.

Front

How does heat energy move in the ocean?

Back

Heat energy in the ocean is transported by warm surface currents, which carry heat from the equator to the poles.

Front

What is the role of the sun in Earth's energy transfer?

Back

The sun provides energy to Earth, which is transferred through radiation, heating the atmosphere, oceans, and land.

Front

What is the difference between conduction and convection?

Back

Conduction transfers heat through direct contact, while convection transfers heat through the movement of fluids.

Front

What is an example of radiation in everyday life?

Back

An example of radiation is feeling warmth from the sun on your skin, even when you are not in direct contact with it.

Front

What is the significance of the Greenhouse Effect for life on Earth?

Back

The Greenhouse Effect is essential for maintaining Earth's temperature, allowing for a stable climate that supports life.