Climate
What is the Coldest place on Earth?
East Antarctic Plateau
Which is the longest river?
Nile River in Africa
Does Earth have the worst weather in the solar system?
No
Will Earth always be here?
No
Are rivers alive?
No, though they act as any living creature, they are not alive.
What is the hottest place on Earth?
Death Valley, California
How far is it to the center of the Earth?
Nearly 3,700 miles (5,955 kilometers)
Is Earth the largest rocky planet in the solar system?
Yes
On average, how much water is used worldwide each day?
400 billion gallons.
What is the origin of the word “volcano”?
"god of fire"
What makes thunder?
When lightning passes through the air
Can rocks float?
YES, during a volcanic eruption, the violent separation of gas from lava produces a “frothy” rock called pumice, loaded with gas bubbles. Geologists say some of it can indeed float.
What would a 100-pound person weigh on Mars?
38 pounds since Mar's gravity is only 38% as strong as Earth's.
Why is Earth mostly crater-free compared to the pockmarked Moon?
Earth's active geology and weather erase much of its history, while the Moon preserves ancient impact records
At what depth do most earthquakes occur?
less than 50 miles (80 kilometers) from the Earth’s surface.
What is the driest place on Earth?
Arica, in Chile
Where is the world’s highest waterfall?
Angel Falls in Venezuela
Is Saturn the only ringed planet?
NO, Jupiter and Neptune both have subtle ring systems.
How many of Earth’s volcanoes are known to have erupted in historic time?
540
What is the softest mineral?
Talc is the softest of minerals
Where do most earthquakes and volcanic eruptions occur on Earth?
along boundaries of the dozen or so major plates
Where is the lowest dry point on Earth?
The shore of the Dead Sea, in the Middle East is about 1,300 feet (400 meters) below sea level.
How hot are the planet’s innards?
It's thought to be at least 7000º F (3870ºC).
How are colors produced in fireworks?
Strontium yields deep reds, copper produces blue, sodium yields yellow, and iron filings and charcoal pieces produce gold sparks.
Where are the oldest rocks on Earth found?
Ocean floor