Physical and Chemical changes of Cooking Food

It is a chemical

change!!!!

Is cooking scrambled eggs

a physical or chemical change?

Putting noodles in

boiling water.

It is a physical change because it changes the texture of a noodle

Cooking Food with Physical and Chemical

Changes.

Christian Gonzalez

How does meat change color when you cook it?

Why is it so important

to learn this?

WHY?

It's important to learn

this because it is the

science of how food

changes chemically

and physically due

to hot and cold

temperatures

It changes

texture and color when cooked but you can't put it back into the egg it

originally was

Is Turning Water into ice a

Physical Change?

It is a physical change because water's chemical make-up hasn't changed. Ice is still water and can then be changed back into its liquid form

and water can be refrozen to solid ice.

The change of pizza crust when put inside an oven

Cooking meat is a chemical change. Proteins in the meat are broken down by the heat caused in a pan,oven or a grill and this causes it to be a chemical reaction. It changes its color from a very light color to a dark or very dark color

Physical changes

when cooking

Food

Chemical changes

A chemical reaction

happens when you

cook bacon.

The heat causes a rearrangement

of atoms causing its color to change.

Vocabulary

AOI:

Human Ingenuity

Unit Question:

What are the chemical and

Physical changes of food?

Chemical Changes: A irreversible chemical reaction

involving the rearrangement of atoms of one or

more substances.

Physical Changes: A physical change is a type of change in which the form of matter is altered but

one substance is not transformed into another.

Change: The act or instance of making or becoming different

How does bacon change

color when cooked?

Chemical Aspects: The base of the pizza is flour and yeast, so the reaction between them is a chemical change. The cooking of the pizza is

also a chemical reaction, because it can't be

undone.

3 STAAR Questions

Answers:

1 is A

2 is D

3 is C

1.Which one of these is a chemical change:

A: Egg changing its color B: Cupcake changing its color

C: A piece of turkey shrinking D: Both B and C

2.Which is a physical change?

A: Water turning into ice B: Turkey overcooked and it's shrinking

C: Cupcake getting bigger when in an oven D: All of the above

3.Cooking scrambled eggs is a...

A: Physical Change B: Revolutionary Change

C: Chemical Change D: Channel Change

Bibliography

"Physical and Chemical Changes." Physical and Chemical Changes. N.p., n.d. Web. 12 May 2013.

BBC News. BBC, n.d. Web. 12 May 2013.

"Chemical & Physical Changes." About.com Chemistry. N.p., n.d. Web. 12 May 2013.