Semester Exam 1

Find the broken safety rules based on the scenario. Check all that apply.

• Not wearing safety googles while working with chemical or other substances

• Looking directly into test tube when mixing chemicals

• Smelling a chemical directly from the container.

• Tasting a chemical unless instructed by your teacher.

• Use of broken or chipped glassware.

What is the volume of the liquid in the graduated cylinder picture below?

• 40

• 41

• 42

• 43

What power is the metric system based on?

• 1

• 10

• 100

• 1000

Choose the correct order for the prefixes from large to small.

• Kilo, Hecto, Deci, Base Units, Deka, Centi, Milli

• Milli, Centi, Deka, Base Units, Deci, Hecto, Kilo

• Kilo, Hecto, Deka, Base Units, Deci, Centi, Milli

• Milli, Centi, Deci, Base Units, Deka, Hecto, Kilo

___________ are often used to show change over time and can be used to compare two or more sets of data.

• Bar Graph

• Line Graph

• Circle Graph

__________ are useful for showing comparisons of
data collected by counting.

• Bar Graph

• Line Graph

• Circle Graph

________is a convenient way to show……the relative sizes of the parts that form an entire body of data.

• Bar Graph

• Line Graph

• Circle Graph

A series of steps designed to help you solve problems and answer questions

• experiment

• scientific method

• observation

• hypothesis

What is the correct order of the steps in the scientific method? 

• Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.

• Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.

• Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.

• Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.

In an experiment, the one variable that is changed is called the

• dependent variable

• independent variable

• controlled variable

• experimental variable