Unit 1

What is an example of a physical change?

• salt dissolving

• baking a cake

• burning paper

• rusting

What is an example of a physical change?

• milk and vinegar mixing

• baking soda and vinegar mixing

• silver tarnishing

• butter melting

Which state of matter has definite shape and definite volume?

• solid

• liquid

• gas

• plasma

Which state of matter has no definite shape or volume?

• solid

• liquid

• gas

• plasma

Which state of matter has a definite volume but no definite shape?

• solid

• liquid

• gas

• plasma

In which type of mixture can the parts be seen?

• homogeneous

• heterogeneous

• compound

• element

In which type of mixture does it look uniform through out?

• heterogeneous

• homogeneous

• compound

• element

What are the two categories of matter?

• heterogeneous and homogeneous

• mixture and compounds

• element and compounds

• pure substance and mixture

Which variable can be changed by you in the experiment?

• independent

• dependent

• controlled

• constant

Which is a chemical property?

• size

• flammability

• color

• odor