matter and mass

The Law of Conservation of matter states that the total amount of matter ______________ after it undergoes change.

• disappears
• stays the same
• weighs less
• explodes

Tags

NGSS.MS-PS1-5

What is the Law of Conservation of mass?

• Mass is created in a chemical reaction
• Mass is created in a physical change
• New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
• Mass is never created or destroyed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Matter is anything that

• takes up space and has mass.
• is in our universe.
• is light, sound or ideas.

Tags

NGSS.MS-PS1-5

Matter can under go two types of changes:

• happy and sad
• physical and chemical
• exploding and folding

Tags

NGSS.MS-PS1-4

True or False?: When matter goes through a physical or chemical change, matter can disappear or appear.

• True
• False

Measure of the amount of matter 

• mass
• volume
• weight
• density

Tags

NGSS.5-PS1-2

Smallest unit of an element

• compound
• atom
• molecule
• product

Tags

NGSS.MS-PS1-1

What will weigh more when a chemical change is complete?  The reactants before the chemical reaction, or the product after the reaction is complete?

• They both will weigh the same
• The product always weighs more than the reactant
• The reactant will weigh more than the product
• They both will loose mass after the reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5