Revision 1

The ability of a metal to be drawn out into thin wires is a ______________.

• physical change

• physical property

• chemical property

• chemical change

The proportions of substances in a mixture ___________________ .

• can vary among the substances

• are always equal for each substance in the mixture

• never can be determined accurately

• are always the same for each substance

A mixture in which particles are so small they cannot be seen with a microscope is a _____________________.

• solution

• suspension

• element

• heterogeneous mixture

Which of the following is a compound?

• vinegar

• oxygen

• silicon

• milk

Which of the following is a substance?

• water

• cheese

• milk

• tea

A change in size, shape, or state of matter is a _________________ .

• physical change

• physical property

• chemical property

• chemical change

Which of the following is an example of physical weathering?

• 
  Formation of a canyon by a flowing stream.

• acid rain corroding a statue.
  

• Formation of stalactites in a cave

• Change of calcium carbonate in limestone to calcium hydrogen carbonate.

A(n) ________ is a substance in which all the atoms in it are alike.

• element

• mixture

• compound

• solution

If using a microscope allows you to see substances in a mixture, that mixture is ____ .

• heterogeneous

• homogeneous

• solution

• microgeneous

Which of the following element would you expect to be least reactive?

• neon

• chlorine

• carbon

• sodium