Directions: Have the materials ready before doing the activity. Take pictures of yourself while doing the activity and answer the following questions after the experiment done. "Ever have a bad hair day? Try this, and the day won't be a total loss!" Materials Needed: Plastic comb; paper. Procedure: Prepare all the materials needed. Tear off several bits of paper about the size of a pea or smaller. Place them on a table or counter. Bring the comb near to the paper bits. Question 1: What happens to the paper and comb? Do they attract or repel? Why? Procedure: Next, run the comb through your hair several times and again bring the comb near the bits of paper Question 2: What happens now? Explain your observation Question 3: What type of charging methods does it relate?

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.