chapter 7
is the earth covered with a greater percentage of water or land?
water
the weather conditions of an area over a period of time
climate
a huge star system
galaxy
a minor earthquake
tremor
_____ orbits the sun in 88 days.
Mercury
the study of the earth and its structure
geology
hurricanes often happen when the ocean's temperature is ____.
warm
What constellation is part of the Great Bear?
Big Dipper
Name one instrument meteorologists use to make a forecast.
humidity, air pressure, temperature, etc.
what type of rock has been changed by pressure or heat
metamorphic
Earthquakes and volcanic eruptions happen because of ______ and can causes changes to the earth's surface.
plate activity
water runoff is _____ that has eventually trickled off into streams.
precipitation
to orbit a central point
revolve
what type of rock can be formed from hot magma or lava?
igneous rock
Name inner planets.
Mercury, Venus, Earth, Mars
What test would you use to find a mineral's true color?
streak test
When a cyclone first forms, meteorologists call it a tropical _____.
disturbance
object that is seen as a result of reflected light
illuminated object
What gives the earth its seasons
the tilt
an energy source that cannot be used again
nonrenewable energy source
where earthquake damage is often greatest
the epicenter
the _____ atmosphere has the greatest density of gases.
lower
the first type of rocket-launched spacecraft designed to be reused
space shuttle
What does GPS mean
Global Positioning System
the first spacecraft to reach interstellar space
Voyager 1