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Cooking: can we get the ingredients back?
Words to learn: ingredients • mixture • heat • cooking
What changes when cookie dough goes into a hot oven?
FIRST WE MIX
Flour, sugar, butter and egg can be mixed together to make dough. It is still a mixture, even though the ingredients are hard to separate.
THEN WE HEAT
In the oven the butter melts, the egg glues everything together, water escapes as steam and the surface begins to brown.
CAN WE CHANGE IT BACK?
A cooked cookie does not turn back into dough when it cools. Cooking has made new materials.
WHAT YOU NEED TO KNOW
NOW LOOK AT THE TEXTBOOK
