Chemistry Part 2

A chemical change is a change in:

• the appearance of a substance. 
• the chemical composition of a substance. 
• the type of matter. 
• the way matter is created. 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-1

Baking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven.

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-LS1-7

A change in the size, shape, or state of matter.

• chemical change
• physical change
• chemical reaction
• electron change

Tags

NGSS.MS-PS1-4

Is burning leaves a physical or chemical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Law of conservation of mass states that 

• matter is created
• matter is destroyed
• matter is neither created nor destroyed
• matter does not change

Tags

NGSS.MS-PS1-5

Bob puts 200 grams of ice into a pitcher with 900 grams of water. The total mass is 1,100 grams. He gets distracted and comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher?

• 200 g
• 700 g
• 1,100 g

Tags

NGSS.MS-PS1-4

Solubility (dissolves): Chemical or Physical Property

• Chemical Property
• Physical Property

Reacts with Acid: Chemical or Physical Property

• Chemical Property
• Physical Property

Tags

NGSS.MS-PS1-2

Boiling: Chemical or Physical Property

• Chemical Property
• Physical Property

Tags

NGSS.MS-PS1-4

Reacts with Air: Chemical or Physical Property

• Chemical Property
• Physical Property

Tags

NGSS.MS-PS1-2