What organelle functions to isolate a human cell’s chromosomes from the cytoplasm?
What is the nucleus?
100
What physical state of matter is intermediate between a solid and gas?
What is liquid?
100
What is the general name for the rising and falling of sea levels in response to the forces exerted by the Moon and Sun?
What are tides?
100
What is the exact circumference, in centimeters, of a circle whose radius is 3 centimeters?
What is 6π?
100
Giving your answer in grams, subtract 200 grams from 6.2 kilograms.
What is 6,000 [grams], or (6 * 10^3) grams
200
What is the primary oxygen-carrying protein found in red blood cells?
What is hemoglobin?
200
A car is traveling at a constant speed of 20 kilometers per hour on a long straight road. How many minutes will it take to travel a distance of 5 kilometers?
What is: fifteen minutes?
200
What is the name of the rock that makes up most of the ocean floor and volcanic ocean islands?
What is basalt?
200
Giving your answer in dollars and cents, if 2 Frisbees cost $16.50, how much will 5 Frisbees cost?
What is $41.25?
200
What is the general name for a plastic material composed of a polymer of styrene?
What is polystyrene, or styrofoam?
300
What is the scientific name for the white of a cooked egg?
What is albumen?
300
If the angle of incidence for a beam of light on a mirror is 27 degrees, what is the angle of reflection, in degrees?
What is: 27 degrees?
300
What is the name for the “river” of high altitude wind over North America that marks the southern boundary between polar air to the north and warmer air to the south?
What is [the polar] jet stream?
300
If the area of a rectangle is 200 centimeters squared and the length is 20 centimeters, what is the perimeter of the rectangle, in centimeters?
What is 60 cm?
300
From what biological polymer is paper primarily composed?
What is cellulose?
400
The organ of Corti is directly involved in what human sense?
What is hearing?
400
A screw driver and a doorknob are considered variations of what simple machine?
What is wheel & axle?
400
What terrestrial planet rotates in an opposite direction to the planet Earth?
What is Venus?
400
If exterior angles at two of the vertices of a triangle are 70º and 145º, what is the measure of an exterior angle at the third vertex, in degrees?
What is 145 [degrees]?
400
One quintillion contains how many zeroes
What are 18 [zeroes]?
500
What is the common name of the members of the Class Aves?
What are birds?
500
Consider a lever with an ideal mechanical advantage of 8. What will its mechanical advantage be if the effort arm length is reduced by ½?
What is 4?
500
What is the name for the northern-most latitude where the Sun can appear directly overhead?
What is the Tropic of Cancer?
500
How many numbers from 1 through 30 are multiples of 3?
What is: 10?
500
What state in the U.S. has the largest continuous system of mangroves in the world?