True or False: Matter can be either a pure substance or a mixture.

• True

• False

_________ and compounds are examples of pure substances.

• Gold

• Neon

• Elements

• Compounds

An element consists of only one kind of _______.

• gas

• solid

• liquid

• atom

Circle the element symbol.

What is a compound?

• a molecule made of only one element

• a molecule made of more than one element

• 79

Tags

NGSS.MS-PS1-1

How many neutrons does GOLD have?

Mathematical Equivalence

ON

Tags

NGSS.MS-PS1-1

What is water (H2O)?

• an element

• a compound

Tags

NGSS.MS-PS1-1

What is H2O?

• 2 hydrogen

  1 oxygen

• 2 helium

  1 xenon

• 1 hydrogen

  2 oxygen

Tags

NGSS.MS-PS1-1

What is a homogeneous mizture?

• A homogeneous mixture is a mixture that contains only one substance.
• A homogeneous mixture is a mixture that has a varying composition throughout.
• A homogeneous mixture is a mixture that can be separated into its components easily.
• A homogeneous mixture is a mixture that has a uniform composition throughout.

What is a heterogeneous mixture?

• A mixture that consists of substances that are chemically combined.
• A mixture that consists of visibly different substances or phases.
• A mixture that consists of substances that cannot be separated.
• A mixture that consists of only one substance or phase.