Organisms and Nonliving Things are Made of Atoms

What is a pure substance made of only one kind of atom?

• Compound

• Molecule

• Element

• Mixture

What is the smallest particle of an element?

• Molecule

• Atom

• Compound

• Cell

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What is formed when two or more atoms are held together by chemical bonds?

• Element

• Atom

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

What is a sample of matter that has definite chemical and physical properties?

• Mixture

• Pure substance

• Solution

• Gas

What is the force that holds two atoms together?

• Gravity

• Chemical bond

• Magnetic force

• Friction

What are two atoms joined together called?

• Simple molecules

• Complex molecules

• Compounds

• Elements

Tags

NGSS.MS-PS1-1

Which of the following is an example of a pure substance?

• Air

• Water

• Saltwater

• Sand

Tags

NGSS.MS-PS1-2

Which term describes a substance made of only one type of atom?

• Mixture

• Compound

• Element

• Solution

Tags

NGSS.MS-PS1-1

Which of the following is not a pure substance?

• Oxygen

• Gold

• Saltwater

• Carbon dioxide

Tags

NGSS.MS-PS1-1

What is the term for a chemical substance that cannot be broken down into simpler substances?

• Compound

• Element

• Mixture

• Solution

Tags

NGSS.MS-PS1-1