Unit 1 Assessment Corrections

Which is the state of matter shown in this figure?

• Liquid

• Solid

• Gas

• Plasma

What does the SI prefix, Mega-, designate?

• 0.01

• 1,000,000

• 100

• 0.000000001

A student conducts an experiment to determine the effect of adding salt on the boiling temperature of water. The results are shown in the table provided. Which is the dependent variable in this experiment?

• Amount of salt added

• Volume of water

• Time required for water to boil

• Boiling temperature

Which term is defined as the use of evidence to construct testable explanations and predictions of natural phenomena, as well as the knowledge generated through this process?

• Hypothesis

• Scientific Theory

• Science

• Law

The accepted value is 29.27.   Which correctly describes this student’s experimental data.

• Accurate but not Precise

• Precise but not Accurate

• Neither Accurate nor Precise

• Accurate and Precise