Weather & Climate
Lightning strikes the United States ______ times each year.
20 million
40 million
60 million
80 million
40 million
There are an estimated _________ trees on Earth, outnumbering stars in the Milky Way.
1 trillion
3 trillion
5 trillion
7 trillion
3 trillion
Objects in motion tend to stay in motion, and objects at rest tend to stay at rest unless acted upon by an external force.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Newton's 1st Law
What substance causes the burning feeling in your mouth when you eat chilies.
Turmeric
Capsaicin
Cinnamon
Capsaicin
On which planet is a day longer than a year?
Venus
The word "electricity" comes from the Greek word for what substance, coined in the 1600s because this substance attracts dust when rubbed.
plastic
ice
amber
lava
amber
What is the windiest place on Earth?
The Congo in Central Africa
Cape Farewell in Greenland
East Antarctic Plateau in Antarctica
Cape Farewell in Greenland
Despite receiving 12 hours of sunlight, less than ______ of that sunlight reaches the floor of a tropical rainforest due to the thick canopy.
2%
5%
7%
9%
2%
This occurs when air resistance and the weight (gravity) acting on a falling object become equal, causing it to stop accelerating.
Force
Terminal velocity
Inertia
Momentum
Terminal velocity
What temperature and pressure is needed to turn carbon graphite into diamonds?
1,000ºC and 100,000 atmospheres
3,000°C and 100,000 atmospheres
1,000ºC and 150,000 atmospheres
3,000ºC and 150,000 atmospheres
3,000°C and 100,000 atmospheres
Olympus Mons on this planet is the tallest volcano in the solar system.
Mars
Electricity is the flow of tiny particles called electrons moving between atoms, traveling at nearly...
125,000 miles per second
153,000 miles per second
186,000 miles per second
197,000 miles per second
186,000 miles per second
Global sea levels have risen __________in the last century.
17 centimeters
24 centimeters
31 centimeters
43 centimeters
17 centimeters
The worlds oceans are home to an estimated ________ fish.
1.5 trillion
3.5 trillion
5.3 trillion
7.1 trillion
3.5 trillion
In 1985, powerlifter Lamar Gant became the first man to deadlift _______ times his own body weight.
three
five
seven
nine
five
Who first invented the battery?
Count Alessandro Batteria
Count Alessandro Volta
Count Alessandro Amphera
Count Alessandro Volta
How fast can a neutron star can spin?
200 times per second
400 times per second
600 times per second
800 times per second
600 times per second
When you walk on carpet, your body collects extra electrons; when you touch metal, those electrons quickly jump to it, causing a...
static shock
Hurricanes were originally given only female names, with the first male name, _____________, appearing in 1978.
Hurricane Harold
Tropical Storm Bud
Monsoon Murray
Tropical Storm Bud
Almost 60% of all species live in ________, making land the planet's most biodiverse habitat.
water
soil
ice
sand
soil
There are six basic simple machines that make work easier. Name two!
Lever, pulley, wheel and axle, inclined plane, wedge, and screw.
White gold in not pure gold. It's gold mixed with what other elements?
aluminum and tin
tin and silver
silver and palladium
palladium and cadmium
silver and palladium
What is the fastest thing in the universe?
Light
People have been riding ocean waves on surfboards for over 1,000 years, with the sport originating on what Pacific island.
Fiji
Java
Hawaii
Polynesia
Hawaii
The highest officially recorded temperature was _______ in Libya in 1922.
113ºF
121ºF
136ºF
148ºF
136ºF
Oceans are the world's largest carbon sink, absorbing ________ of the heat trapped in the atmosphere by greenhouse.
63%
73%
83%
93%
93%
According to the law of conservation of energy, can energy be destroyed?
Yes
No
No, it can only be converted from one form to another.
What's the only two letters that does NOT appear on the periodic table of elements?
J & Q
It can rain diamonds on what planet due to high pressure and heat.
Neptune
The basic properties of waves include...
A. amplitude, time, speed, frequency.
B. time, wavelength, speed, frequency.
C. amplitude, wavelength, speed, frequency
C. amplitude, wavelength, speed, frequency