4G Science 2nd 9wks Review

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, causing things like apples to fall to the ground.

Front

What happens to falling time when the mass of an object changes?

Back

Falling time does not change with the mass of a falling object.

Front

What is an impermeable material?

Back

An impermeable material is one that does not allow water to pass through it, like clay separating aquifers.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without changing its chemical composition.

Front

What is deposition in terms of Earth's materials?

Back

Deposition is the process by which materials are added to a landform, such as when river water drops pebbles and sand along its bank.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is an aquifer?

Back

An aquifer is a layer of rock or sediment that can hold and transmit water.

Front

What is the melting of ice?

Back

The melting of ice is a physical change where solid ice turns into liquid water.

Front

What are examples of materials that can be deposited by river water?

Back

Examples include pebbles, soil, and sand.

Front

What is the role of gravity in falling objects?

Back

Gravity causes all objects to fall towards the Earth at the same rate, regardless of their mass.