Classifying MatterAugust 31

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is a substance?

Back

A substance is a type of matter that has a uniform and definite composition.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that retain their individual properties.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance is dissolved in another.

Front

What is a colloid?

Back

A colloid is a mixture where tiny particles are dispersed throughout another substance and do not settle out.

Front

What is a suspension?

Back

A suspension is a heterogeneous mixture where solid particles are suspended in a liquid and can settle over time.

Front

What is the difference between a homogeneous and heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has distinct, separate components.

Front

What safety precautions should be taken in a lab?

Back

Always wear safety goggles, gloves, and a lab coat; never eat or drink in the lab.

Front

Why should make-up not be applied during lab work?

Back

Make-up can interfere with safety protocols and increase the risk of contamination or chemical exposure.

Front

What is an active heat source?

Back

An active heat source is any device or material that generates heat and can pose a fire hazard if left unattended.