Why Does Hair Get Frizzy When It's Humid?

The video explains how humidity affects frizzy hair by interacting with keratin proteins. It details the role of chemical bonds, particularly hydrogen bonds, in changing hair shape. The unpredictability of water absorption leads to frizz. Historically, hair was used to measure humidity, as its length changes with moisture levels. This principle was applied in early hygrometers, demonstrating a practical application of frizz.

What is the primary protein in hair that contributes to its structure?

• Collagen

• Myosin

• Keratin

• Elastin

How do hydrogen bonds affect hair when it gets wet?

• They break and reform, altering hair shape.

• They strengthen the hair permanently.

• They cause hair to lose color.

• They make hair grow faster.

What happens to hair when it absorbs water at different rates?

• It changes color.

• It becomes resistant to humidity.

• It becomes uniformly straight.

• It results in frizz due to uneven swelling.

Who was one of the first to use hair in a hygrometer?

• Galileo Galilei

• Albert Einstein

• Horace Benedict de Saussure

• Isaac Newton

How can you simulate 0% humidity using a hair-based hygrometer?

• By exposing it to sunlight

• By using a hair dryer

• By placing it in a freezer

• By using a wet rag