Physical and Chemical Changes English

What is the Boiling point of water?

• a change in matter that makes it different without changing what the material is made of

• Particles close, move back and forth, and can NOT slide past each other

• Unique characteristics used by scientists for identification

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What are physical properties?

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

• Solid, liquid, or gas form of a substance

• Unique characteristics used by scientists for identification

• a change in matter that makes it different without changing what the material is made of

Tags

NGSS.MS-PS1-4

What is a Physical change?

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

• a change in matter that makes it different without changing what the material is made of

• A reaction where NEW substances are formed that have different properties from the original substances. Oftentimes, chemical reactions result in changes easily observed.

• Unique characteristics used by scientists for identification

Describe particles in a gas state.

• Particles close, move back and forth, and can NOT slide past each other

• Particles move freely, expand to fill container

• Particles close, and they CAN slide past each other

• Unique characteristics used by scientists for identification

Tags

NGSS.MS-PS1-4

Describe particles in a liquid state.

• Particles close, and they CAN slide past each other

• Particles move freely, expand to fill container

• Unique characteristics used by scientists for identification

• Particles close, move back and forth, and can NOT slide past each other

What happens when heat is removed from a substance?

• 0 degrees Celsius.

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

• The solid might melt.

• The substance can freeze.

Tags

NGSS.MS-PS1-4

What is the melting point/freezing point of water?

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

• The solid might melt.

• 0 degrees Celsius.

• The substance can freeze.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is a chemical reaction?

• A reaction where NEW substances are formed that have different properties from the original substances. Oftentimes, chemical reactions result in changes easily observed.

• A change in matter that makes it different without changing what the material is made of

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

• Unique characteristics used by scientists for identification

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens if heat is added to a solid?

• The solid might melt.

• The substance can freeze.

• Temperature at which a liquid water boils and becomes a gas; 100 degrees Celsius

• 0 degrees Celsius.

Tags

NGSS.MS-PS1-4

What are States of matter?

• a change in matter that makes it different without changing what the material is made of

• Particles move freely, expand to fill container

• Solid, liquid, or gas form of a substance

• Unique characteristics used by scientists for identification

Tags

NGSS.MS-PS1-4