Unit 1 - Formation of a New Substance

Chemical Reaction

• a substance formed as a result of a chemical reaction

• a change in matter that produces one or more new substances

• the process in which substances undergo chemical changes that result in the formation of new substances

• a substance that enters into a chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a PURE substance composed of the SAME type of atom

• atom
• substance
• element

Tags

NGSS.MS-PS1-1

A substance made of TWO or more elements that are CHEMICALLY combined in fixed amounts is...

• Substance
• Element
• Compound

Tags

NGSS.MS-PS1-1

A CHANGE that alters (changes) the identity of a substance and results in a NEW substance with DIFFERENT properties.

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2

A CHANGE to a substance that occurs without forming a NEW substance, such as change of size or state of matter.

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Evidence of the release of energy during a CHEMICAL CHANGE is...

• Production of Precipitate
• Production of Gas
• Production of Heat or Light

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Evidence of a NEW substance formed from a chemical change is...

• Production of Gas
• Production of Heat and Light
• Production of a Precipitate 

Tags

NGSS.MS-PS1-2

Evidence of a NEW substance formed from a chemical change, resulting in SOLID particles that form or separate out of a liquid is...

• Production of Heat or Light
• Production of a Precipitate
• Production of Gas

Tags

NGSS.MS-PS1-2

INCREASE or DECREASE of heat energy in a substance may be evidence of a NEW substance formed during a chemical change because of...

• Color Change
• Temperature Change
• No change at all

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A change in the way something reflects LIGHT, and can indicate a chemical change is known as...

• Temperature Change
• No Change
• Color Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS4-2