Michelle Gay, a science teacher, guides viewers through a paper towel experiment to understand variables. She explains independent, control, and dependent variables, and demonstrates how to set up and conduct the experiment. The experiment compares two paper towel brands to see which absorbs more water. Results show the Sam's Club brand absorbs more. Michelle emphasizes the importance of multiple trials for accurate results and encourages viewers to explore experiments at home.

What is the main focus of the video tutorial?

• History lessons

• Mathematics problems

• Science experiments

• Cooking techniques

Which type of variable is being tested in the experiment?

• Random variable

• Control variable

• Independent variable

• Dependent variable

What is a control variable in an experiment?

• A variable that changes

• A variable that remains constant

• A variable that is ignored

• A variable that is measured

What materials are needed for the paper towel experiment?

• Two different brands of paper towels, a timer, and a measuring cup

• A ruler, a pencil, and an eraser

• A notebook, a pen, and a calculator

• A computer, a projector, and a screen

Which brand of paper towel is used in the experiment?

• Costco and Walgreens

• Walmart and Target

• Amazon and eBay

• Sam's Club and Dollar General

How long is each paper towel submerged in water during the experiment?

• 10 seconds

• 20 seconds

• 30 seconds

• 40 seconds

What is the purpose of letting the paper towel drip for 30 seconds?

• To change the color of the paper towel

• To measure the amount of water absorbed

• To dry the paper towel completely

• To make the paper towel heavier

What was the result of the experiment regarding the paper towels?

• Neither paper towel absorbed any water

• The Sam's Club paper towel absorbed more water

• The Dollar General paper towel absorbed more water

• Both paper towels absorbed the same amount of water

Why is it important to conduct multiple trials in an experiment?

• To ensure the results are accurate and reliable

• To make the experiment more fun

• To use up all the materials

• To make the experiment longer

What is the dependent variable in the paper towel experiment?

• The size of the paper towel

• The time the paper towel is submerged

• The amount of water absorbed

• The brand of paper towel