Giant Review for Fall 2021 Final Exam

When smelling a chemical, you should hold it away from your face and ____ the air toward your nose!

• waft

• drink

• clean

• fire

What is used to measure the volume of liquids more precisely in milliliters?

• Beaker
• Flask
• Graduated Cylinder
• Test tubes

What is used to hold test tubes?

• Test tube rack
• Magnifying glass
• Petri dish
• Funnel

What is used to pick up items?

• Clamps

• Tongs

• Hand lens

• Pipette

What is used to transfer small amounts of liquid?

• Graduated Cylinder

• Pipette

• Beaker

• Flask

A scientist performs an experiment to see if acids have an effect on the health of a particular type of plant. Three sets of plants were treated with acidic solutions of known pH while the control set was treated with a solution of neutral pH 7.Which is the best conclusion for this experiment?

• Acid has no effect on the health of this type of plant.
• B. High acidity is helpful to this type of plant.
• C. Low acidity is harmful to this type of plant.
• High acidity is harmful to this type of plant.

Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music.  Which component is missing from Carmen’s experiment?

• a question
• a hypothesis
• a control group
• a description of the experiment

In order to be accepted, a scientific theory must be

•  widely tested and supported by extensive data
•  based on the results of a single experiment
•  controversial and cause debate
•  in line with all previous historical ideas

Which of these contains steps in the right order?

• Ask a question, state your hypothesis, research, experiment, analyze, make a conclusion
• State your hypothesis, ask a question, research, experiment, analyze, make a conclusion
• Ask a question, research, state your hypothesis, experiment, analyze, make a conclusion
• State your hypothesis, ask a question, research, make a conclusion, experiment, analyze

If plants are exposed to sunlight, then they will grow taller.
What part of the scientific method is this an example of?

• Procedure
• Hypothesis
• Question
• Results