⚖️⚛Conservation of Matter⚛⚖️

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 tool might a scientist use to demonstrate the Law of Conservation of Matter?

• ruler
• beaker
• thermometer
• balance scale

Tags

NGSS.MS-PS1-5

How much does a 5 gram Hershey's kiss weigh after it is melted in the microwave?

• 5 grams
• 3 grams
• 7 grams

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

• The mass of the products is always greater than the mass of the reactants.

• The mass of the reactants is less than the mass of the products.

• The mass of the reactants equals the mass of the products.

• The mass of the reactants is greater than the mass of the products.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which section represents the reactants?

• A

• B

• C

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which section represents the products?

• A

• B

• C

Tags

NGSS.MS-PS1-2

Which section represents the yield sign?

• A

• B

• C

Why does this picture demonstrate the Law of Conservation of Mass?

• the number of atoms of each element are the same on both sides

• they start out separate and end up combined

• the same elements are used

• it doesn't demonstrate the Law of Conservation of Mass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which picture below would correctly demonstrate the Law of Conservation of Matter if this picture is the reactants?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If a chemical reaction occurs in an open system (not contained), what might happen to the measurable mass of the products when compared to the reactants?

• the measurable mass might decrease because any gas produced can escape (the actual mass would stay the same)

• the mass would increase because mass was created

• the measurable mass would stay the same because nothing would be able to leave the system.

• it depends on the type of reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5