In an experiment, the variable deliberately changed by the scientist is called:

A: the manipulated variable

B: the controlled variable

C: the responding variable

Numbers in scientific notation must be expressed in this form where: M x 10^{n}

A: M is one and n is greater than or equal to one but less than ten.

B: M is greater than or equal to one but less than ten, and n is one.

C: n is greater than or equal to one but less than ten.

D: M is greater than or equal to one but less than ten

Which of the following is in correct scientific notation?

A: 16.5 x 10³

B: 3.0 x 3³

C: 1.3 x 10³

D: 0.54 x 10³

Express 0.0003 in correct scientific notation.

A: 0.0003 x 10¹

B: 3 x 10^{4}

C: 3 x 10^{-4}

D: 0.3 x 10^{4}

Multiply 3 x 10^{2} times 2 x 10^{-3}

A: 6 x 10^{-1}

B: 6 x 10^{1}

C: 6

D: 6 x 10^{5}

What is the volume of a cube if each side measures 2.0 cm?

A: 8.0 cm

B: 8.0 cm^{3}

C: 2.0 cm

D: 6.0 cm^{3}

(Answers: **A, B, C, C, A, B**)