Lauric Acid Experiment Concepts

Mrs. Wagner conducts an experiment to observe the freezing of lauric acid, a component of coconut oil. She explains the setup, including a temperature probe and data collection on a Chromebook. The experiment involves cooling lauric acid in water slightly above freezing, with temperature readings taken every 30 seconds for 900 seconds. Mrs. Wagner shares her background and school information, and discusses the freezing process and particle behavior. The experiment concludes with observations of solidification and data sharing with students.

What is lauric acid commonly used in?

• Olive oil

• Coconut oil

• Canola oil

• Sunflower oil

What is the initial state of lauric acid at room temperature?

• Plasma

• Solid

• Gas

• Liquid

What device is used to record the temperature of lauric acid during the experiment?

• Hygrometer

• Temperature probe

• Thermometer

• Barometer

How often is the temperature of lauric acid recorded during the experiment?

• Every 60 seconds

• Every 30 seconds

• Every 10 seconds

• Every 90 seconds

What is the initial temperature of lauric acid when the experiment begins?

• 22.8 degrees Celsius

• 25.2 degrees Celsius

• 31.4 degrees Celsius

• 19.5 degrees Celsius

What visual change indicates that lauric acid is starting to freeze?

• It becomes cloudier

• It starts bubbling

• It changes color

• It becomes clearer

What happens to particles when a substance freezes?

• They evaporate

• They expand

• They move slower

• They move faster

What is the final temperature of the lauric acid after 900 seconds?

• 25.2 degrees Celsius

• 22.8 degrees Celsius

• 19.5 degrees Celsius

• 20.7 degrees Celsius

What is the state of lauric acid at the end of the experiment?

• Gaseous

• Partially solidified

• Completely solid

• Completely liquid

Who is the teacher conducting the experiment?

• Mr. Van Hoven

• Mrs. Wagner

• Mrs. McDaniel

• Mr. Gaylor