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Why do apple slices turn brown after being cut? - Scientific American

www.scientificamerican.com/article/experts-why-cut-apples-turn-brown/

When an apple is cut (or bruised), oxygen is introduced into the injured plant tissue. ... and the lower pH that they bring about causes PPO to become less active.

Why Does Your Apple Turn Brown, and How Can You Stop It?

io9.gizmodo.com/why-does-your-apple-turn-brown-and-how-can-you-stop-it-1605149639

Jul 15, 2014 ... Why do apples try so hard to foil your quest for vitamins? ... American, Why Do Cut Apples Turn Brown, Polyphenol Oxidase Causes Browning.

Why Do Apples Turn Brown? Experiment | Education.com

www.education.com/science-fair/article/stop-cut-fruits-vegetables-turning-brown/

Sep 11, 2013 ... In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

What factors affect the oxidation of apples? | SEP LESSONS

www.seplessons.org/node/1690

Apples and other fruit turn brown once the cut surface is exposed to air due to a reaction with oxygen in the surrounding air, a chemical reaction called ... Why do some fruits and vegetables turn brown after you cut them? .... Cause and Effect ...

Science Experiment: The Brown Apple Project - Purdue Extension

extension.purdue.edu/4h/Documents/Volunteer Resources/Science Made Easy/Brown Apples.pdf

Participants will explore the chemical reaction behind apple browning. ... Fruit turns brown when exposed to air because a reaction is happening when a cut ...

Everyday Chemistry - Why do cut apples turn brown?

humantouchofchemistry.com/why-do-cut-apples-turn-brown.htm

When you come back to your apple, it's gone brown all over. What happened? ... But it may cause some vitamins to leach into the water. Rub the cut apples with ...

Why do apples turn brown when you cut them? - UCSB Science Line

scienceline.ucsb.edu/getkey.php?key=64

Remember these yummy apple pies with brown apples on top? Apples turn brown when exposed to air because of the oxidation process that goes on when the ...

Why Cut Apples Turn Brown - Chemistry - About.com

chemistry.about.com/od/chemistryfaqs/f/brownapplefaq.htm

Learn why apples, pears, bananas, potatoes, and other fruits and vegetables turn brown when they are cut or damaged.

www.ask.com/youtube?q=Causes Apples to Brown&v=gbArE5dv0W4
Jul 9, 2014 ... Why do apples turn brown after you cut them, or when they rot? Basically for the same reason that human hair, eyes and skin is brown, too. Not that we're cal... ... What Causes Auroras? - Duration: 3:29. SciShow 273,353 ...

Why the Insides of Apples Turn Brown When Exposed to Air

www.todayifoundout.com/index.php/2014/04/insides-apples-turn-brown-exposed-air/

Apr 15, 2014 ... The insides of apples turn brown when exposed to air thanks to a built in defense mechanism against bacteria and fungus. The trigger for this is ...