Science Chemistry

What is matter?

• Anything that has mass and takes up space

• A pure substance made of one kind of atom

• A substance made up of two or more different elements

• A mixture of elements and compounds.

Which of the following is a compound?

• Carbon

• Water

• Oxygen

• Nitrogen

Tags

NGSS.MS-PS1-1

What are the three subatomic particles?

• Protons, Neutrons, Electrons

• Atoms, Molecules, Compounds

• Elements, Compounds, Mixtures

• Solids, Liquids, Gases

Electrons have a ____ charge.

• Positive

• Negative

• Neutral

• No charge.

Tags

NGSS.MS-PS2-3

How many electrons does a carbon atom have?

• 4

• 6

• 8

• 12

Tags

NGSS.MS-PS1-1

What type of change does not alter the identity of a substance?

• Chemical change

• Physical change

• Both A and B

• None of the above

Tags

NGSS.MS-PS1-4

The Law of Conservation of Mass states that in a chemical reaction, matter/mass cannot be ____, only transformed.

• created or destroyed

• heated or cooled

• increased or decreased

• solidified or liquefied

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which system allows reactants or products to enter or escape?

• Open system

• Closed system

• Both A and B

• Neither A nor B

A balanced chemical equation supports the Law of ____.

• Gravity

• Conservation of Mass

• Thermodynamics

• Motion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of change involves forming a new substance with different properties?

• Physical change

• Chemical change

• Both A and B

• None of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5