Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
The Science Behind waterproof Mascara
Transcript of The Science Behind waterproof Mascara
By Ajra and Elena
Mascara was very common in Ancient Egypt amongst women and men.
The very first mascaras were made by blending kohl, honey, water and crocodile dung.
Eyes were believed to be the windows of the soul, so Egyptians would line their eyes with kohl and use mascara to conceal them and ward off any bad spirits.
Many ancient drawings show Cleopatra with heavy make-up.
Victorian women would spend hours getting ready, and would make their own mascaras.
The first packaged cosmetic mascara was produced by Eugene Rimmel.
It was made from a blend of petroleum jelly and black coal dust.
First waterproof mascara was created from a blend of 50% turpentine (resin) .
Ever tried mixing water with oil?
You'd have a tough job-they don't mix!
That's because the water molecules attract other water molecules and the same goes for the oil molecules.
This means they stick together.
So how can they mix?
Well, how do you clean greasy pots and pans? With soap!
Soap is an emulsifier.
Survey results: a few facts
prefer using waterproof mascara
said their eyelashes felt damaged using waterproof mascara
can never fully remove waterproof mascara
tall oil glycerides
-Derived from Silicone which is an adhesive and a water repellent.
-Prevents the mascara from simply slipping off the lashes.
-Also used in hair products as it increases shine.
- Viscous black odorous liquid.
- Used as an adhesive, a binder and ink.
- Low flammability and low aromatic content.
- It´s a type of hydrocarbon.
- Is a polymer made of many repeating ethylene units.
- Holds together the ingredients.
- Increase the thickness of lipids (oil).
- Beeswax ( wax secreted by bees).
- Copernica Cerifera
- Helps keep an emulsion.
To test the difference between waterproof and normal mascara in different environments in different everyday life activities.
Normal mascara and waterproof was applied to each different side of the eye ( the left side was normal and the right side was waterproof).
Time left to dry is 2 minutes for each eye.
The Girls had to dunk their head in the bowl whilst playing a game of ‘’apple-bobbing’’ to get their face wet .
A picture was taken before and after and as you can see from the pictures, 1 eye should be slightly more smudged than the other .
1.Volunteers ( 6 )
2.Normal Mascara ( Maybelline rocket volume express) and Waterproof ( the colossal volum’ express)
4.Bowl filled with approximately 20 cm of Water ( and apples).
GREENLIGHT FOR GIRLS
It keeps two different substances mixed together.