Matter: Standardized Test Practice

Which is not an example of matter?

• air
• heat
• phone
• tree

Which best explains how electrons are arranged around an atom?

• in a cloud
• in an orbit
• clockwise
• counter-clockwise

What is the overall charge of a neutral atom?

• 7
• 1
• 0
• -1

If an atom has 6 protons and 11 neutrons, what is its atomic number?

• 5
• 17
• 6
• 12

What holds atoms together in chemical compounds?

• gravity
• strong nuclear force
• chemical bonds
• friction

Which is the most common state of matter in the universe?

• solid
• liquid
• gas
• plasma

A glass contains liquid water. Which best explains how the water particles move?

• They move freely and independently.
• They vibrate but do not move.
• They slide past each other.
• They create compounds.

Which of the following statements is true?

• All matter is made up of compounds.
• All matter is made up of atoms.
• All matter is made up of mixtures.
• All atoms are the same.

A subatomic particle that has a negative electric charge is...

• an electron
• a neutron
• a proton
• a nucleus

When humans exhale, they release a gas called carbon dioxide (CO₂). CO₂is...

• an atom
• an element
• a mixture
• a molecule