NC Check-ins Physical Science

Front

How does heat energy from the Sun reach Earth?

Back

Heat energy from the Sun reaches Earth through radiation, which is the transfer of energy through space without the need for a medium.

Front

What happens to sugar when it is mixed with water and then heated to make syrup?

Back

When sugar is mixed with water and heated, it dissolves, meaning it breaks down into smaller particles and becomes part of the water.

Front

What does it mean when an object is moving at a fast steady speed?

Back

It means the object is moving away from its starting position at a constant speed without speeding up or slowing down.

Front

Why does a pan placed on a hot stove top begin to warm?

Back

A pan warms on a hot stove top due to conduction, which is the transfer of heat through direct contact between materials.

Front

What is transpiration in plants?

Back

Transpiration is the process by which plants release water vapor into the air as a waste product.

Front

What is conduction?

Back

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

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer parts rise and cooler parts sink.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as sunlight traveling through space to reach Earth.

Front

What happens during the process of evaporation?

Back

Evaporation is the process where liquid water turns into water vapor, usually when heated.

Front

What is condensation?

Back

Condensation is the process where water vapor cools and changes back into liquid water, often forming droplets.