A _________ is formed when two or more atoms of any type combine.

• Atom

• Element

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

These are all examples of ____________.

• Atoms

• Elements

• Molecules

• Compounds

Tags

NGSS.MS-PS1-1

The best definition of a molecule is...

• The building block of the universe

• 2 or more of the same type of atom bound together

• 2 or more of any type of atom bound together

• 2 or more different types of atoms bound together

Tags

NGSS.MS-PS1-1

Table salt (NaCl) is a good example of a(n) __________ because it contains atoms of different types.

• Atom

• Element

• Molecule

• Compound

Tags

NGSS.MS-PS1-1

Compounds are certain types of molecules that contain _________.

• Only one type of atom

• A certain proportion of "Atom A" to "Atom B"

• Too many electrons

• More than one type of atom

Tags

NGSS.MS-PS1-1

Ozone (O₃) is an example of a ___________ but not a __________ because it's made up of ALL oxygen atoms

• Molecule, compound

• Compound, molecule

Tags

NGSS.MS-PS1-1

All compounds are molecules, but not all molecules are compounds.

• True

• False

Tags

NGSS.MS-PS1-1

This is an image of glucose (a sugar that is a very important source of fuel for your body). Check the TWO boxes that would describe what Glucose is.

• Atom

• Element

• Compound

• Molecule

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-1

When atoms are joined together, they form .

• molecules

• nuclei

• electrons

• protons

Tags

NGSS.MS-PS1-1

Sodium is a reactive, alkali metal. A neutral sodium atom consists of 11 protons, 11 electrons and 12 neutrons. It is a soft metal and metallic silver in color. Sodium plays an important role in the functioning of the human nervous system. Which of the following images represents the atomic structure of a neutral sodium atom?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS1-1