7th Grade MEGA Review - Units 1-3

Front

What is conduction?

Back

Conduction is the method of heat transfer through direct contact between materials. It occurs when heat moves from a warmer object to a cooler one.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through empty space.

Front

What happens to water when it is heated?

Back

When water is heated, it evaporates, turning from liquid to gas, and rises into the air.

Front

What type of cloud is associated with thunderstorms?

Back

Cumulonimbus clouds are typically associated with thunderstorms.

Front

Are atoms and molecules always in motion?

Back

True. Atoms and molecules are perpetually in motion; they vibrate in solids and move more freely in liquids and gases.

Front

What is the main source of heat when holding an ice cube?

Back

The main source of heat is your hand, and the type of heat transfer is conduction.

Front

What is the difference between solids, liquids, and gases in terms of particle motion?

Back

In solids, particles vibrate closely together; in liquids, they vibrate more freely; in gases, they move independently and rapidly.

Front

What is the process of water turning into vapor called?

Back

The process of water turning into vapor is called evaporation.

Front

What is the role of the sun in the water cycle?

Back

The sun provides the heat necessary for evaporation, which is a key part of the water cycle.