All matter is made up of

• energy

• atoms

• electrons

• compounds

Tags

NGSS.MS-PS1-1

Atoms are the basic unit of

• matter
• energy
• protons
• electrons

Tags

NGSS.MS-PS1-1

What is a molecule?

• A combination of elements
• A structure of atoms
• Any material made of two or more atoms
• A pure substance of a single element

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NGSS.MS-PS1-1

The nitrogen in air has two nitrogen atoms bonded together.  This nitrogen is

• a compound
• an element
• a molecule
• an atom

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NGSS.MS-PS1-1

Methane is a compound of exactly one carbon atom and four hydrogen atoms.  Which of the following is true about methane?

• It will have the same properties as hydrogen.
• It will have the same properties as carbon.
• It will have the properties of both hydrogen and carbon.
• It will have its own unique properties.

Tags

NGSS.MS-PS1-1

The beginning substances in a chemical reaction are called...

• reactants
• products

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NGSS.MS-PS1-1

The final substances in a chemical reaction are called

• products

• reactants

Tags

NGSS.MS-PS1-2

How many H atoms are in H₂O?

• 1

• 2

Tags

NGSS.MS-PS1-1

How many water molecules are in H₂O?

• 1

• 2

Tags

NGSS.MS-PS1-1

How many carbon atoms are in on molecule of glucose, C₆H₁₂0₆?

• 1

• 6

• 12

• 24

Tags

NGSS.MS-PS1-1