A substance has a mass of 12 grams and a volume of 6.0 cubic centimeters. What is the density of the substance?

Given D=M/V

• 0.5 gram/cubic centimeter

• 2.0 grams/cubic centimeter

• 18 grams/cubic centimeter

• 72 grams/cubic centimeter

A train that is powered by magnetism and electricity is currently being tested in Japan. A student wants to build a model of this train.

Which test will best determine if the model train works?

• attach the model train to an electric fan

• connect the model train to a solar panel

• attach the model train to a bottle rocket

• connect the model train to an electromagnet

According to this periodic table, what are the elements in yellow called?

• metals

• nonmetals

• noble gasses

• metalloids

Why is copper wire used so often to prepare a house for electricity?

• It is cheap

• It is a good conductor

• It is a good semiconductor

• It is malleable

According to the Law of Superposition, which layer is the oldest?

• A

• B

• C

• D

Which sets of ordered pairs represent a function? Select all that apply.

• (1,1), (1,2), (1,3), (1,4)

• (1,1), (2,2), (3,3), (4,4)

• (1,1), (2,1), (3,1), (4,1)

• (1,4), (2,4), (1,3), (2,3)

Which equation has infinitely many solutions?

• 5x - 5 = 11x + 2 - 1

• 4x +5 = -4x + 5

• 3x + 4 = 3 + 3x -1

• 3x + 2 -2x = x + 2

A cell phone company charges $20 for a customer to open an account and $35 for each month of the phone service. Is this a proportional linear relationship?

• Yes

• No

Twice the difference of a number n and seven is equal to four less than the product of five and the number n. What is the value of n ?

• n = - 10/3

• n = -1

• n = 1

• n = 10/7

What is it called when an author hints at future events in a story?

• Flashback

• Foreshadowing

• Imagery