Semester 1 Review

All of the following pieces of lab equipment EXCEPT for _____________ could be useful for transferring a liquid from one container to another.

• Beaker
• Funnel
• Petri Dish
• Graduated Cylinder

Micah needs 25 mL of motor oil to test his combustion engine. Which tool would give him the most precise measurement?

• Beaker
• Flask
• Test tube
• Graduated cylinder

Which piece of glassware is never used for making measurements?

• Graduated cylinder
• Beaker
• Test tube
• Erlenmeyer flask

When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the

• dependent variable
• constant
• independent variable
• control group

In a hypothesis the __________________ variable is what is being tested, while the _________________ variable is the one being measured in response.

• control; dependent
• independent; control
• dependent; independent
• independent; dependent

What is the part of an experiment that serves as a standard for comparison?

• Control Group

• Constant

• Hypothesis

• Variable

A testable prediction that predicts a cause and effect relationship between variables is a(n)

• analysis

• hypothesis

• observation

• inference

Where does the dependent variable go on a graph?

• X-axis

• Y-axis

• In the Title

• In the Key

Why is it advisable to use tongs when taking a beaker off a laboratory burner?

• It prevents spilling.

• It prevents the beaker from breaking.

• It looks cool.

• It allows you to move it if it is too hot.

A factor in an experiment that changes in response to the independent variable is the ____.

• constant

• control group

• independent variable

• dependent variable