Which model would best demonstrate evidence of matter that cannot be seen?

• A.

  Blow up a balloon with helium gas.

• B.

  Burn a piece of paper to make ashes.

• C.

  Feel the heat given off by a lightbulb.

• D.

  Add water to a mixture of sand and gravel.

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NGSS.MS-PS1-4

NGSS.MS-PS1-5

The smallest particle that makes up matter.

• Atoms

• Elements

• Molecules

• Compounds

Tags

NGSS.MS-PS1-1

Oxygen would be considered which of the following?

• Element

• Compound

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NGSS.MS-PS1-1

All matter is made of ____________.

• Cells

• Chemicals

• Properties

• Atoms

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NGSS.MS-PS1-1

The idea that every thing is made up of tiny particles is called

• atomic theory

• compound

• sand particles

• molecules

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NGSS.MS-PS1-1

When molecules are made up of two or more DIFFERENT types of atoms, they are called _______________.

• particles

• compounds

• elements

• halogens

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NGSS.MS-PS1-1

What is water (H₂O)?

• element

• compound

• mixture

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NGSS.MS-PS1-1

What is the picture displayed?

• atom

• element

• compound

Tags

NGSS.MS-PS1-1

the smallest part of compound is ................

• oxygen

• molecule

• hydrogen

• carbon

Tags

NGSS.MS-PS1-1

Salt (NaCl) would be considered which of the following?

• Element

• Molecule

• Compound

Tags

NGSS.MS-PS1-1