What is the only place on the Earth where you can find lemurs?
Madagascar
What is the outer layer of the Earth called?
The crust
What is a region of space having a gravitational field so intense that no matter or radiation can escape.
Black Hole
What is the typical depth of the ocean floor?
11,034 meters
What is the third most common gas found in the air we breathe?
Nitrogen
What are the six main groups of animals?
The six main groups are: invertebrates, mammals, birds, amphibians, reptiles and fish.
What is the second layer of the Earth called?
Mantle
What is a hypothetical celestial object that expands outward from a space-time singularity and emits energy, in the manner of a time-reversed black hole.
White Hole
What are reefs?
A ridge of jagged rock, coral, or sand just above or below the surface of the sea.
What is the first element on the periodic table?
Hydrogen
What is a food web?
A hierarchical series of organisms each dependent on the next as a source of food
What are plate tectonics?
A theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
What is the speed of light?
299 792 458 m / s
What is the average salinity of the ocean?
35 parts per thousand
What is the centre of an atom called?
Nucleus
What is the largest animal?
blue whale
What are landforms?
A natural feature of the earth's surface.
Why do comets have tails?
As a comet approaches the Sun, it starts to heat up. The ice transforms directly from a solid to a vapor, releasing the dust particles embedded inside.
What are tides?
the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun.
True or false? An electron carries a positive charge.
False
Fastest animal alive?
peregrine falcon
What is a volcano?
A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
What is a star?
A fixed luminous point in the night sky which is a large, remote incandescent body like the sun.
How fast do vertical currents move?
6 miles per hour.
At room temperature, what is the only metal that is in liquid form?
Mercury