Law of Conservation of Matter

In the law of conservation of matter, matter is...

• created

• destroyed

• created and destroyed

• neither created nor destroyed, just rearranged

Tags

NGSS.MS-PS1-5

The law of conservation of matter works for...

• only physical changes

• only chemical changes

• both physical and chemical changes

• neither physical nor chemical changes

Tags

NGSS.MS-PS1-5

Photosynthesis is a chemical change. Where does a plant get its mass from?

• carbon dioxide and water

• water and sugar

• sugar and oxygen

• oxygen and water

Tags

NGSS.MS-LS1-6

When water boils, it looks like it's disappearing. What's happening to the matter?

• Water is getting destroyed

• Water is getting destroyed, but steam is magically showing up

• New water is being created

• Water is turning into steam

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The mass of matter before any change is...

• the same afterwards

• larger afterwards

• smaller afterwards

• much smaller afterwards

Tags

NGSS.MS-PS1-5

If there are 3 atoms of oxygen and 4 atoms of hydrogen before a chemical reaction, how many of each type of atom will there be after a chemical reaction?

• 4 oxygen, 3 hydrogen

• 3 oxygen, 4 hydrogen

• 7 oxygen

• 1 hydrogen

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5