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WorksheetsPlanet Earth
Total questions: 20
Worksheet time: 14mins
For many years most people mistakenly thought that the Earth was
very old.
spherical in shape.
the only planet in the universe.
flat.
It is now common knowledge that the Earth is round, spins on its axis and
contains a lot of rock & minerals.
has more than one moon.
sometimes has ice ages.
revolves around the Sun.
The Earth is shaped like a ____ - which is a round three-dimensional object.
sphere
circle
ellipse
potato
Aristotle and others observed that Earth displayed a curved shadow during a(n)
solar eclipse.
lunar eclipse.
equinox.
time of winter solstice.
Other observational evidence that shows the Earth as spherical in shape included
sailing ships falling off the edge.
sailing ships top mast slowly coming into view on approach.
artificial satellites & space probes sending back pictures.
looking at the Sun.
Earth spins around an imaginary line called the axis - which is also known as its ____.
rotation
revolution
axis of symmetry
spherical movement
Earth's steady rotation causes day & night, and also the
seasons.
equinoxes.
illusion that the Sun, Moon & stars go around the Earth.
solstices.
One complete rotation takes about 24 hours - or
one day.
about 360 minutes.
one revolution.
about 360 degrees.
One complete ____ around the Sun takes about 365 days or one year.
rotation
trip
revolution
spin
Earth is the ____ of the inner planets (Mercury, Venus & Mars).
largest
coldest
smallest
hottest
The spinning core of the Earth is believed to be a cause of the seasons.
True
False
Earth's magnetic field acts as a barrier against harmful solar radiation.
True
False
The location of Earth's magnetic poles have slowly changed over time.
True
False
Compass needles point to magnetic north - which is 11.5 degrees off from
from the equator.
geographic north (or the north pole).
most GPS measurements.
satellite measurements.
Earth travels in a(n) ___ around the Sun - which brings it closer & farther away during a year.
perfect circle
helical
circle
ellipse
Earth's axis is also tilted 23.5 degrees from its orbit. This tilt causes the ____
Earth to wobble.
ice ages.
Earth to precess on its axis.
seasons.
The hemisphere that is tilted towards the Sun receives
more hours of sunlight each day.
very little sunlight.
less hours of sunlight each day.
no sunlight at its pole.
The combination of Earth revolving around the Sun, its tilt and ____ explain the seasons.
roving magnetic pole
the changing magnetic field
varying angles of sunlight
distance from the Sun
A solstice is the day when the Sun reaches its greatest distance
north of the equator.
south of the equator.
from the Earth.
from the galactic center.
Which statement best describes an equinox?
when there are equal amounts of solar-angled radiation
equal nighttime hours all over
when the Sun appears directly over the equator
equinoxes only happens once a year
