Fingerprinting Experiment Concepts

The video tutorial guides viewers through a fingerprinting experiment, starting with a hypothesis that different fingers have unique patterns. It explains how to leave a fingerprint using forehead grease, apply baby powder to make it visible, and lift it using tape. The tutorial concludes with an analysis of different fingerprint patterns and encourages viewers to try the experiment themselves.

What is the main hypothesis of the fingerprinting experiment?

• Fingerprints cannot be lifted.

• Fingerprints are identical for everyone.

• Different fingers have different patterns.

• All fingers have the same pattern.

What is the first step in leaving a fingerprint?

• Rub your thumb on your cheek.

• Press your thumb on a piece of paper.

• Dip your thumb in water.

• Rub your thumb on your forehead.

Why is it important to be gentle when applying baby powder to the fingerprint?

• To change the fingerprint pattern.

• To make the fingerprint colorful.

• To make the fingerprint disappear.

• To avoid smudging the fingerprint.

What tool is used to remove excess baby powder from the fingerprint?

• A fan.

• A vacuum cleaner.

• A blower.

• A hairdryer.

What is the purpose of using tape in the fingerprinting process?

• To color the fingerprint.

• To lift the fingerprint.

• To enlarge the fingerprint.

• To erase the fingerprint.

What pattern is observed on the thumb in the experiment?

• Loop pattern.

• Whorl pattern.

• Spiral pattern.

• Arch pattern.

Which fingers were observed to have an arc pattern?

• Thumb and index fingers.

• Index and pinky fingers.

• Middle and ring fingers.

• Thumb and pinky fingers.

What is suggested to do after completing the fingerprint experiment?

• Sell the fingerprints.

• Try the experiment with others.

• Throw away the materials.

• Forget about the experiment.

Where can you find additional fingerprinting activities?

• In a newspaper.

• On a social media page.

• In the workbook.

• In a science textbook.

What can you do if you want to watch the full video?

• Sign up for a free trial.

• Buy a DVD.

• Call a friend.

• Visit a library.