IQWST Grade 6 Unit 2 Introduction to Chemistry

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What are the three states of matter?

Back

The three states of matter are solid, liquid, and gas.

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is the difference between mass and weight?

Back

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

Front

What happens to gas particles when heated?

Back

When gas particles are heated, they move faster and spread further apart.

Front

What is a melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.

Front

What is the role of a thermometer?

Back

A thermometer measures temperature by indicating the expansion or contraction of a liquid.

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.