Directions: Many of us have either heard someone say, or said ourselves "I'm having a bad hair day!" Most people are aware that their hair behaves differently under different weather conditions. Work with others in your group to determine whether or not hair is affected by humidity.
Purpose: To determine which types of hair humidity levels affect most and what factors may effect these changes.
Materials:
hair sample
forceps or latex gloves
2 petri dishes
2 glass jars or beakers
water and paper towel
tape
Caution: Even though your hair sample has been recently washed, remember to handle it only with forceps or while wearing latex gloves.
Procedure: 1. Illustrate and write a description of your hair sample.
2. Divide the sample into two equal parts. Place each in a separate petri dish. 3. In your classroom study area, place one dish on the counter and the other on a water-soaked paper towel on the counter. 4. Cover both containers with glass jars or beakers. Place tape around the bottom of each to prevent the passage of air into or out of the containers. Illustrate the set up of your experiment.
5. After a 24-hour period, again observe the hair samples. Illustrate and write a description of your observations.
6. Form a conclusion describing the effects of humidity on your hair sample.
7. Share your observations with the class and record the observations of other groups using the following criteria:
Type of Hair
Effects of Humidity
Analysis: What factors were apparently involved in how humidity affects human hair? Consider: gender, race, hair color, texture, and chemical additives.
Ask classmates who have hair that is affected by humidity how they cope with the changes. Theorize on the effectiveness of those activities.
Challenge: Based on the class discussion, what is a hair hygrometer and how might it work? Which hair sample would be most effective in determining changing humidity? Explain.
Bad Hair Day
Directions: Many of us have either heard someone say, or said ourselves "I'm having a bad hair day!" Most people are aware that their hair behaves differently under different weather conditions. Work with others in your group to determine whether or not hair is affected by humidity.
Purpose: To determine which types of hair humidity levels affect most and what factors may effect these changes.
Materials:
hair sample
forceps or latex gloves
2 petri dishes
2 glass jars or beakers
water and paper towel
tape
Caution: Even though your hair sample has been recently washed, remember to handle it only with forceps or while wearing latex gloves.
Procedure:
1. Illustrate and write a description of your hair sample.
2. Divide the sample into two equal parts. Place each in a separate petri dish.
3. In your classroom study area, place one dish on the counter and the other on a water-soaked paper towel on the counter.
4. Cover both containers with glass jars or beakers. Place tape around the bottom of each to prevent the passage of air into or out of the containers. Illustrate the set up of your experiment.
5. After a 24-hour period, again observe the hair samples. Illustrate and write a description of your observations.
6. Form a conclusion describing the effects of humidity on your hair sample.
7. Share your observations with the class and record the observations of other groups using the following criteria:
Type of Hair
Effects of Humidity
Analysis:
What factors were apparently involved in how humidity affects human hair? Consider: gender, race, hair color, texture, and chemical additives.
Ask classmates who have hair that is affected by humidity how they cope with the changes. Theorize on the effectiveness of those activities.
Challenge:
Based on the class discussion, what is a hair hygrometer and how might it work? Which hair sample would be most effective in determining changing humidity? Explain.
OOPS
have you have any tornados yet this year.
UCK I HATE SCIENCE FAIRS.
my projects due tomorrow and I havent started
Reply
Reply
Leave a comment