Counting Atoms, Elements, and Molecules

What is a small particle that is known as the basic building block of matter?

• molecule

• compound

• element

• atom

Tags

NGSS.MS-PS1-1

Two oxygen atoms bond together, which vocabulary word best describes this type of matter?

• molecule

• compound

• element

• atom

Tags

NGSS.MS-PS1-1

H₂O is most accurately described as a ___________________.

• molecule

• compound

• element

• atom

Tags

NGSS.MS-PS1-1

Which of the following is the most accurate statement?

• everything is both a molecule and a compound

• nothing can be both a molecule and a compound

• all compounds are also molecules

• All molecules are also compounds

Tags

NGSS.MS-PS1-1

Which vocabulary words can be used to describe this image? (check all that apply)

• molecule

• compound

• element

• atom

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Oxygen, Nitrogen, Hydrogen, and Calcium are all examples of ______________________.

• molecules

• compounds

• atoms

• elements

Tags

NGSS.MS-PS1-1

Which one of the following is a compound?

• NaCl

• O2

• Hydrogen

• He2

Tags

NGSS.MS-PS1-1

What is a substance with unique physical and chemical properties that can't be reduced by chemical means.

• an element

• an atom

• a molecule

• a compound

Molecules and compounds are created when multiple atoms bond together, but how are they different?

• Compounds have to have atoms from different elements bonded together

• Molecules have to have atoms from different elements bonded together

• They are the same and there is no difference

• Molecules are building blocks of compounds

Tags

NGSS.MS-PS1-1

What purpose do molecular models, drawings, and diagrams serve? (check all that apply)

• They allow us visual representations for things we can't normally see.

• They make concepts easier to understand.

• They make concepts more difficult to understand.

• They serve no purpose.

Tags

NGSS.MS-PS1-1