Week 24 Day 4 Science Classwork

Which of the following tells you that a chemical change may have occurred?

• Change Shape
• Melting
• Vaporizing
• Change in color

Tags

NGSS.MS-PS1-2

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is milk going sour a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is the formation of the grand canyon a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-ESS2-2

Is copper tarnishing a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

The Law of Conservation of Mass tells us matter can't  ______________.

• change color
• change state of matter
• be created or destroyed
• change temperature

Tags

NGSS.MS-PS1-5

The science teacher asked his students to tell him the freezing point of water in Celsius degrees. Which student was correct?

• The student who stated -100 degrees celsius.
• The student who stated -32 degrees celsius.
• The student who stated 0 degrees celsius.
• The student who stated 32 degrees celsius.

A physical change

• cannot be reversed.
• can be reversed.
• is permanent.

What is the best way to separate a bowl of marbles?

• by size
• by shape
• by color
• texture