Physical Changes & Chemical Reactions

Which of the following are physical changes?

• cooking an egg

• chopping a tree

• heating a cup of tea

• drying clothes in a dryer

Which of the following are chemical changes?

• use a magnet to separate metal and plastic paperclips

• boiling water

• using a filter to remove debris from water

• burning food in a fire place

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What words are indicators that a chemical reaction occurred?

• burning

• crushed

• melting

• reacting

• breaking

Tags

NGSS.MS-PS1-2

Atoms in the __________ are regrouped into different molecules to form the products.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following are the products?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

During a chemical reaction, ___________ and energy are transformed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-4

True/False: After a chemical reaction, the physical properties will stay the same.

• True

• False

Tags

NGSS.MS-PS1-2