Sunday, January 19, 2014

BIG HAIRY DEAL--The Perfect Activities to go with WHAT IF YOU HAD ANIMAL HAIR!?

WHAT IF YOU HAD ANIMAL HAIR!? lets you imagine what it would be like to have a wild animal's hair on your head. 

Wild Hairy You

What if you could have a wild animal's hair on your head for a day? What kind would you like to have? Why?

Write a short story about what happens to you on that day you have wild hair. Does it save the day for you? Get you into trouble? Make you wildly popular? What happens?

Now, jump into these activities to investigate human hair--what's really on your head.

Mane Line

Do blondes have more fun? No, but they definitely have more hair. If you're a natural blonde, you have about 140,000 hairs per square inch on top of your head. Brunettes have about 110,000 hairs per square inch. 

Redheads only have about 90,000 hairs per square inch. One reason for this is probably that blonde hairs tend to be skinnier than brown or red hairs.

Check out one of your hairs by gently tugging it free. Don't worry about losing this hair. Every day, you just naturally lose as many as a hundred hairs. Those are old hairs that are pushed out and replaced by new hairs.

Take a close look at your one hair with a magnifying glass. The shape of the shaft (main body of the hair) makes a big difference. If it's round, the odds are your hair is naturally straight. Wavy hair has an oval shaft. Naturally curly hair has a flat shaft.

Pulling Its Load

This is ancient rope made from human hair

Long ago, the people of Japan made ropes from human hair. They used these to lift heavy loads. 

So how strong is hair. Try this test to find out how much weight a single hair can support before it breaks.

First, check out your single hair's features. 
  • Does it feel like it can bend easily without breaking? 
  • Is it stretchy?

Compare healthy hair to hair that isn't so healthy. How are they different?
What happens to hair as it breaks?
Now, predict how many grams you think a single hair can hold without breaking: 1 gram, 2 grams, 3 grams or more.

Then test your prediction. You'll need one hair that's at least 6 inches long. If you have short hair, you'll need someone with long hair to give you one to test or visit a hair salon to ask for a test sample.

Next, Use tape to attach one end of the hair to one end of a ruler. Set the ruler on a table so the hair hangs over the edge. Anchor the ruler with a stack of books.

Use a second piece of tape to attach a paperclip to the free end of the hair. Then slip other paperclips one at a time onto the first clip so they're dangling down from the hair. Do this until the hair breaks.  Note: If the paper clip becomes full before the hair breaks, add a paper clip spread into a "V". Then add more paperclips to this clip.

Once the hair breaks, add up the number of clips the hair supported. Multiply that by 0.5.  That will tell you the grams of weight the hair supported.  To be sure what you discovered is likely to happen every time, repeat this test with two other hairs, one at a time. Then compare your results.

EXTRA fun!
OK--what if you wanted to lift a 100-gram candy bar out of a hole in the ground and you needed a rope? 

If you were going to make a rope out of hair, how many hairs would you want to use? 

Would you rather use blonde or brunette hair? Describe how you came to your conclusions

Did you notice the ancient Japanese made their hair ropes by braiding together clusters of loose strands of hair. Why do you think braiding hairs together made the rope stronger?

It's Hair Story

Here are some hairstyles that have been popular in the past. Read about them. Then pick one you think could be fun to have. Write why you chose this one.  Be sure to include why you think this would be just right for you.

Big Wigs: People in ancient Egypt who could afford to do so wore wigs. This usually covered a bald head because people shaved their heads to avoid head lice.

Corkscrew Curls: In ancient Greece, both men and women curled their hair using a hot bronze rod, the first curling iron.

Gold Tops: In ancient Rome, men and women colored their hair with gold dust or powders. 

Bowl Cut: During the Middle Ages many European men wore their hair cut short framing their face.

Pageboy: In 14th century Europe, men wore their hair rolled at the base of their neck.

Queue: In 17th century China, men shave the front of their head and twisted the long back hairs into a braid called a queue. Pulling someone's queue was an insult.

Fancy Do: In 18th's century Europe, women combed their hair over wire cages to create big dos. They decorated these with flowers, jewels, feathers and even models of things like boats.

Gibson Girl: During the late 1800s, women in Europe and the U.S. wore a hairstyle so distinct it had a name--the Gibson Girl. To create this look, long hair was combed over a pad, creating a wide frame for the face.

Bobbed: After World War I, women in Europe and the U.S. bobbed their hair by cutting it short. This was a drastic change from wearing long hair.

Beatle Cut: In the 1960s, the Beatles' shaggy hair caused a stir worldwide and created a new styling fad.

 Hair is something we all have. But it's one of those ways you can make yourself uniquely you. 
How would you describe this hair style?

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