Introduction to Matter

Matter is anything that has mass and takes up space.

• True

• False

A substance is a single kind of matter that always has a specific make-up or composition.

• True

• False

During a lab demonstration, we mixed baking soda and vinegar and observed bubbles as a gas was given off. Does this describe a physical or chemical change?

• Physical change

• Chemical change

Tags

NGSS.MS-PS1-2

Jonah is crushing the cans at the local recycling center. He realizes that even though he is crushing the cans, the amount of matter is unchanged. Which of the following describes the type of change that is taking place?

• A change in the chemical bonds within the object

• A physical change

• A chemical change

• A change in the mass of an object

Tags

NGSS.MS-PS1-5

Examples of physical properties include all of the following except:

• Flammability (how easily something burns)

• Melting point

• Luster or shininess

• Viscosity or thickness of a liquid

A group of two or more atoms held together by chemical bonds.

• Distillation

• Molecule

• Mixture

Tags

NGSS.MS-PS1-1

What is the correct definition of an element?

• Substances that are made of only one type of atom

• Two or more substances not chemically bonded

• Positively charged particles within the nucleus of an atom

List the types of atoms in a molecule of water and write how many atoms there are of each type.

Tags

NGSS.MS-PS1-1

What is the correct definition for density?

• mass per unit volume

• weight per unit volume

• volume per unit mass

A compound is a molecule containing more than one element.

• True

• False

Tags

NGSS.MS-PS1-1