Atmosphere, Density, and Heat day 2

Front

What are the layers of the atmosphere in order from Earth to space?

Back

troposphere, stratosphere, mesosphere, thermosphere, exosphere

Front

What is convection and how does it work in a lava lamp?

Back

Convection is the transfer of thermal energy through the movement of fluids. In a lava lamp, heat is transferred to the wax, causing it to lose density and rise. When it cools, its density increases and it sinks.

Front

Define atmosphere in the context of Earth.

Back

The atmosphere is a mixture of gases and particles that surround a planet, held by gravity.

Front

How does radiation transfer heat?

Back

Radiation transfers heat through electromagnetic waves.

Front

What causes the water near the surface of a swimming pool to be warmer?

Back

The temperature of the water near the top rises because of convection.

Front

What is the primary gas in Earth's atmosphere?

Back

Nitrogen, which makes up about 78% of the atmosphere.

Front

Explain the concept of density in relation to heat transfer.

Back

Density is the mass per unit volume of a substance. When a substance is heated, it typically expands, becomes less dense, and rises.

Front

What role does gravity play in the atmosphere?

Back

Gravity holds the atmosphere in place around the planet, preventing gases from escaping into space.

Front

What is the difference between conduction, convection, and radiation?

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.

Front

How does the stratosphere differ from the troposphere?

Back

The stratosphere is above the troposphere and contains the ozone layer, which absorbs and scatters ultraviolet solar radiation.