44 terms

Scientific Christmas Challenge

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Santa Claus
Placental mammal classified as a Homo sapien; he travels the world on Christmas Eve
Conifer
Type of tree with needles, often used as a Christmas decoration
Red
A primary color associated with Christmas, such as the color of Rudolph's nose
Green
A secondary color made from mixing blue and yellow
Electricity
Needed to power the lights on a tree
Snowflake
6-sided frozen water crystal that might make it a "white" Christmas
Caribou
Placental mammals with 4 legs and antlers that "power" a sleigh; also called a reindeer
Volume
Determined by multiplying the length, width, and height of a present
Sphere
The shape of many ornaments and the planet we live on
North Pole
Location of Santa's workshop near 0 degrees north latitude
Winter
Season that begins on December 21st in the Northern Hemisphere
Chimney
Often made from blocks of clay that have been cured; entrance for St. Nick in some homes
Carol
Musical compositions that can be heard during the holiday season
Mistletoe
Parasitic plant that may prompt people to kiss
Sugar
Tasty compound used to make holiday candy; represented by C12H22O11
Chemical Change
Type of change that occurs when holiday cookies are made
Physical Change
Type of change that occurs when snow melts (solid to a liquid)
Solid
State of matter of snow
Mouse
Rodent that could not be heard stirring on Christmas Eve
Red Algae
Believed to be the reason Rudolph's nose glows
Coal
Organic sedimentary rock used as an energy source
32
Freezing point of water on the Fahrenheit scale
0
Freezing point of water on the Celsius scale
Frosty
Decoration made from frozen H2O compacted into spheres
Gold
Represented by the chemical symbol Au; also the color of reindeer eyes in the summer
Silver
Represented by the chemical symbol Ag and was used in the past for tinsel
Hot Chocolate
Solution created as a tasty powder is dissolved in water; often topped with marshmallows
Milk
A white colloid often left for Santa along with a plate of cookies
December
Twelfth month of the year with 31 days
Candy Cane
A cylindrical stick of striped, peppermint candy with a curved end
Christmas
Occurs on the 359th day of the year
Edison
Introduced the first Christmas lights to the world in 1880
Comet
An icy object in our solar system that emits gases; also a name for one of the reindeer
Combustion
Type of chemical reaction that occurs when a candle burns
Female
Santa's reindeer are classified as this gender, since they keep their antlers all year; in humans this gender has a genotype of XX
Male
Gender of reindeer that shed their antlers each year; in humans this gender has a genotype of XY
Sodium Bicarbonate
Helpful with holiday baking; chemical formula = NaHCO3
Caffeine
Parents might need a bit of this compound after an early Christmas morning opening presents; chemical formula = C8H10N4O2
Frost
Ice formed on windows and other surfaces when water vapor changes directly into ice crystals
2092 km/sec
How fast Santa's sleigh would have to travel to visit all the Children in one night
Christmas Eve 1968
Apollo astronauts become the first humans to orbit the moon on this day
Blue
The color or reindeer's eyes in the winter
6
Number of points on a snowflake
Supernova
A recent hypothesis suggests the Star Of Bethlehem was possibly this celestial phenomena
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