Matter, Mixtures, Physical and Chemical Changes

Which of the following is NOT a clue that a chemical change has occurred? 

• change of state of matter
• color change
• production of a gas
• production of heat

Tags

NGSS.MS-PS1-2

What is salad?

• element
• compound
• mixture

• chemical reaction

• physical change

After _________________ __________________ the appearance of the matter can change but not its properties.

• chemical properties

• physical properties

• physical changes

• chemical changes

If you can't see the individual substances that make up a mixture, it is a

• homogenous mixture

• heterogenous mixture

• Combustion

• Experiment

If we can see the different substances in a mixture, it is a

• homogenous mixture

• heterogenous mixture

• Pure substance

• Element

A substance with the same kind of atom throughout is a(an)...

• element
• molecule
• compound
• mixture

Describe this sample

• Pure element
• Pure compound
• Mixture of elements
• Mixture of compounds

Tags

NGSS.MS-PS1-1

Mixtures are created by...

• Physical changes only
• Chemical changes only
• Physical and Chemical changes

A physical change occurs when a substance _____. 

• breaks into individual elements
• becomes a new substance
• changes from an acid to a base
• changes shape, size, and form