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. Examples include melting ice or breaking a glass.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. Examples include rusting iron or burning wood.

Front

How can you separate iron filings from flour?

Back

You can separate iron filings from flour using magnetic attraction, as iron is magnetic and will be attracted to a magnet.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to help lift objects. It reduces the amount of force needed to lift an object.

Front

Which inclined plane requires the most force to push a ball to the top?

Back

The inclined plane that is the steepest requires the most force to push the ball to the top.

Front

What is force?

Back

Force is a push or pull on an object that can cause it to move, stop, or change direction.

Front

What is the role of gravity on an inclined plane?

Back

Gravity pulls objects downwards, making it harder to push them up an inclined plane.

Front

What is filtration?

Back

Filtration is a process used to separate solids from liquids or gases using a filter that allows only the liquid or gas to pass through.

Front

What is distillation?

Back

Distillation is a process used to separate mixtures based on differences in boiling points, often used to purify liquids.

Front

What is evaporation?

Back

Evaporation is the process by which liquid turns into vapor, often used to separate a liquid from a dissolved solid.