A Closed System is...

• A chemical combination

• A chemical reaction in a confined space

• A chemical reaction in an open space

• A system of chemical reactions

Tags

NGSS.HS-PS3-4

An open system is

• A chemical reaction in an open space

• An open system chemical reaction

• A combination of reactions

• A chemical reaction in a closed space

Contain means

• to help

• to give

• to have or to hold

• to make

An atom is...

• Basic units of study

• Basic elements that change all the way through

• Basic unit of measurement

• Basic unit of a chemical element (the same all the way through) All things are made up of atoms. 

Tags

NGSS.MS-PS1-1

A phases change is...

• When matter stays the same

• When matter changes from one state to another (gas/liquid/solid/plasma)

• When gases and liquid mix together

• A scientific phase

Tags

NGSS.MS-PS1-4

Interact means

• molecules stay the same

• molecules

• molecules rearrange

• molecules dance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Reactants are...

• The new products

• The old chemical reaction

• An old product that moves around

• the old substances that interact (atoms/molecules)that begin a chemical reactions.

Tags

NGSS.MS-PS1-1

A product is a...

• New substance that is produced in a chemical reaction.

• An old substance that interacts in a chemical reaction.

Tags

NGSS.MS-PS1-2

Combine means...

• One substance alone

• Separating two substances

• mixing two things (substances) together

A principle is...

• The leader of a school.

• A general scientific law agreed on by the scientific community (all scientists!)

• A law invented by teachers