Dwarf planets
TRUE or False
The moon(s) of each planet revolve(s) around the planet, and the orbiting moon(s) do(es) not affect the planet.
True
true or false
Pluto has more characteristics of a comet than a planet.
True
True or False
Solar winds blow the glowing gases of a comet's tail away from the sun.
TRUE
The earliest model of the solar system is the ___________________ model.
geocentric
True or False Once Copernicus published his ideas, the scientific community started to adopt his theory.
False
After rockets, scientist used __________ to transport people to and from space.
space shuttles
A(n) __________ is any man-made object placed in orbit around a body in space.
artificial satellite
How many dwarf planets have scientists identified in our solar system?
5
In 2006, scientists demoted Pluto from a planet to a _______________.
dwarf planet
Comets, like planets, have an ______________ orbit around the sun.
elliptical
Who was the first philosopher to develop the geocentric model?
Aristotle
Which device did Galileo use to make discoveries that supported the heliocentric model?
The telescope
The ________________ is a permanently occupied outpost in outer space, and it is an important stepping stone for further space exploration.
International space station
A(n) __________ is any object in space that orbits another object.
satellite
Where in the solar system is the asteroid belt?
between Mars and Jupiter
Sometimes during its orbit, ______________ is closer to the sun than _______________is.
Pluto, Neptune
A small body of ice, rock, and dust that follows a highly elliptical orbit around the sun is a(n) _________________.
comet
Who was an astronomer, geographer, and mathematician who lived in Egypt during the time of Ancient Rome and developed a detailed geocentric model that was used by astronomers for 1,000 years?
Ptolemy
Who was the scientist who developed the first detailed heliocentric model in the 1500s?
Copernicus
During the Cold War, the United States and Russia worked with their top scientists to find ways to enter and utilize space. This competition was known as the ______________.
Space Race
Satellites help provide many of our modern conveniences. When we use a GPS system to help us navigate, we are using which kind of satellite?
Global Positioning Satellite system
Where is the Kuiper Belt?
The Kuiper belt is beyond Neptune.
Who was one of the leading scientists who demoted Pluto?
Dr. Mike E. Brown
A large rocky body in space orbiting the sun is a(n) ____________.
A small rocky body that travels through space is a(n) ____________.
asteroid, meteoroid
True or False
By applying logical thinking and geometry to scientific observation, Greek scientists were able to determine the size of the earth and understand that the moon revolves around it.
true
We currently use the _______________ model of the solar system which states that the ______________revolves around the ________________.
heliocentric
earth, sun
Astronauts aboard the International Space Station (ISS) can see a sunrise every __________________________.
hour and a half
Satellites help provide many of our modern conveniences. What do meteorologists use in their jobs?
weather satellite
Which belt is closest to Earth?
asteroid belt
TRUE OR FALSE
Pluto has cleared its orbit, leaving no miscellaneous pieces of rocks or ice in its orbit around the sun.
FALSE
A body of rock that reaches Earth’s surface without burning completely is a(n) _____________.
The glowing trail of a body or rock that is burning in Earth’s atmosphere upon entry is a(n) ________________.
meteorite, meteors
In the _______________, the planets are assumed to move in a small circle called an epicycle, which in turn moves along a larger circle called an orbit. This was used to explain the unusual motion of planets.
Ptolemaic model
This scientist observed four moons of Jupiter and further proved the heliocentric model. He is known as the Father of Modern Science.
Galileo
Scientists have studied many different things aboard the International Space Station (ISS). Give 2 reasons why they are performing research.
ISS research includes astronomy, the effects of zero gravity on humans, space medicine, physics, space weather, and meteorology.
Satellites provide many of our modern conveniences. When we use our phones to call or text people, we are using which kind of satellite?
communication satellite