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THE SCIENCE OF. HALLOWEEN. Orange and black are Halloween colors because orange is associated with the Fall harvest and black is associated with darkness and death. Science Fact #1:.

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Presentation Transcript
slide2
Orange and black are Halloween colors because orange is associated with the Fall harvest and black is associated with darkness and death.

Science Fact #1:

Colors that can be produced by visible light of a narrow band of wavelengths are called pure spectral colors. The various color ranges on the spectrum are continuous, with no clear boundaries between one color and the next

slide3
Jack o’ Lanterns originated in Ireland where people placed candles in hollowed-out turnips to keep away spirits and ghosts.

Science Fact #2:

A pumpkin is a gourd-like squash of the genus Curcurbita and typically have a thick, orange or yellow shell, creased from the stem to the bottom, containing the seeds and pulp.

slide4
Halloween was brought to North America by immigrants from Europe who would celebrate the harvest around a bonfire, share ghost stories, sing, dance and tell fortunes.

Science Fact #3:

Radiation is energy that is transmitted in the form of rays, waves or particles. Bonfires give off light and heat radiation.

slide5
Tootsie Rolls were the first wrapped penny candy in America.

Tootsie Roll is a brand of chewy candy. It is a form of candy that has been manufactured in Chicago, Illinois since 1896.

In 1896 its founder Leo Hirschfeld wanted a "chocolate" candy that would not melt easily in the heat, and would be an economical artificial alternative to traditional chocolates

Science Fact #4:

Both physical and chemical changes occurred while cooking the tootsie rolls.

• Some physical changes include the melting of the butter & chocolate.

• Some chemical changes include the sugar caramelized through cooking.

slide6
Vampires are mythical beings who defy death by sucking the blood of humans.

Science Fact #5:

There really are so-called vampire bats, but they're not from Transylvania. They live in Central and South America and feed on the blood of cattle, horses and birds.

slide7
Signs of a werewolf are a uni-brow, hair palms, tattoos, and a long canine teeth.

Science Fact #6:

Werewolf syndrome is an unusual and rare genetic disorder, which is scientifically known as hypertrichosis.

Lionel the Lion-Faced Man, had congenital terminal hypertrichosis.

slide8
Many people still believe that gargoyles were created by medieval architects and stone carvers to ward off evil spirits.

Science Fact #7:

In architecture, a gargoyle is a carved stone grotesque, usually made of granite; In science granite is a intrusive igneous rock (“fire rock”). Granite is usually found in the continental plates of the Earth’s crust.

slide9
Blood is associated with the scary aspects of Halloween.

Science Fact #8:

Blood is the life-maintaining fluid that circulates through the body's: heart, arteries, veins, capillaries.

Blood carries away from the body waste matter and carbon dioxide.

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