Fibres: Scientific Method and Human Eyebrow Brown

Title: Looking at fibres
Aim:
To investigate natural and synthetic fibres under the microscope.
Hypothesis:
I predict that natural fibres will appear rough and taper under the microscope and synthetic fibres will appear smooth.
Method:
Refer to text book 1, 2-2 fibres and fabrics.
Results:
Fabric sample to touch
Description/observation
1. Silk
Soft
2. Leather
Soft
3. Corduroy
Soft, rough underside
4. Nylon
Soft, stretchy
5. Linen
Soft
6. Wool
Soft, rough, fluffy
7. Polyester
Soft
8. Cotton
Strong, soft
9. Nylon mix
Smooth, rough underside

Slide sample
Observation
1. Nylon
Blue, furry
2. Cotton
Blue, furry
3. Silk
White, elastic
4. Polyester
Blue, smooth
5. Rayon
White, elastic
6. String
White, plastic
7. Wool
White, fluffy
Unknown 1.
Blue, plastic
Unknown 2.
White, elastic, looks like silk
Unknown 3.
White, elastic
Unknown 4.
Pink, plastic

Discussion:
The results collected in my first table show that all fibres were soft to touch. These fibres also had differences in elasticity and some had a different texture on the underside of the fabric.
The results collected in my second table show what different fibres appear like under the microscope. A vast majority of these fibres appeared white under the microscope.
The unknown fibres under the microscope have similarities to those of Silk, Rayon and string.
Conclusion:
In conclusion different fibres appear different in colour and texture under the microscope.

Title:
Looking at hair
Aim:
To investigate different hair samples under the microscope.
Hypothesis:
I predict that different hair samples will appear different under the microscope.
Method:
Refer to text book 1, 2-5 looking at hair.
Results:

Sample Observation
1. Human eyebrow Brown
2. Underarm hair Yellow-green
3. Jordan’s hair Purple
4. Dog hair Thick?
Unknown 1. Yellow
Unknown 2. Thin

Title:
Looking at hair
Aim:
To investigate different hair samples under the