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PRESENTATION OUTLINE

FACTS ABOUT FIRE.

FIRE IS A CHEMICAL REACTION THAT RELEASES LIGHT AND HEAT.

SUBSTANCES COMBINE WITH OXYGEN IN THE AIR, COMBUSTING WITH A FLAME AND

OFTEN SMOKE.

FLAMES ARE PART OF A FIRE WHICH WE CAN SEE, THEY CAN BE IN DIFFERENT COLORS,

DEPENDING ON THE SUBSTANCE WHICH IS BURNING.

A CANDLE FLAME TYPICALLY BURNS AROUND 1000 DEGREES CELSIUS (1800 FAHRENHEIT).

Photo by Herr Olsen

SCIENTISTS BELIEVE THAT HUMANS BEGAN USING FIRE TO COOK FOOD IN A CONTROLLED

WAY AROUND 1 MILLION YEARS AGO.
Photo by RDECOM