Shared Flashcard Set

Details

Solar System
Solar System
25
Science
4th Grade
12/06/2008

Additional Science Flashcards

 


 

Cards

Term
revolution
Definition
the movement of an object around another object
Term
orbit
Definition
the path of an object around another object
Term
axis
Definition
an imaginary line through a spinning object
Term
rotation
Definition
one full spin of an object around an axis
Term
satellite
Definition
an object that revolves around another object
Term
full moon
Definition
During this phase, the entire half of moon facing the Earth is lighted. You see the moon as a full circle.
Term
first quarter
Definition
during this phase, half of the part of the moon facing the Earth is lighted, and the other half is dark.
Term
last quarter
Definition
during this phase, 1/4 of the moon is lighted.
Term
lunar eclipse
Definition
When the moon moves through the shadow of the Earth. Sometimes the moon is fully covered by the shadow, and this is a total lunar eclipse. Other times, it is partially covered, and it is called a partial lunar eclipse.
Term
solar eclipse
Definition
When the moon makes a shadow on the Earth, a solar eclipse occurs. Sometimes the moon blocks all the sunlight in certain areas on Earth, and it is called a total eclipse. In other areas, it blocks only some light, and they see a partial solar eclipse.
Term
Mercury
Definition
The second smallest planet, Mercury is half the size of the Earth. It has no moons and is closest to the sun.
Term
Mars
Definition
Mars is about the same size as the Earth. It is has 2 moons and it is the third smallest planet.
Term
Venus
Definition
Venus has no moons and it is about the same size as the Earth. It is the second closest planet to the sun.
Term
Jupiter
Definition
Is the largest planet with at least 16 moons. It is about 11 times larger than the Earth.
Term
Saturn
Definition
Is known as the "ringed planet." It has at least 18 moons and is 9 times the size as the Earth.
Term
solar system
Definition
the sun, the nine planets and their moons, and other objects that orbit the sun
Term
Uranus
Definition
has 17 moons and is about 4 times larger than the Earth. It also has a ring of gases surrounding it.
Term
Neptune
Definition
Has 8 moons and is about 4 times as large as the Earth
Term
Pluto
Definition
Is the smallest planet, and is about the size of the Earth's moon! It is very cold as it is one of the furthest planets from the sun. It has 1 moon.
Term
ellipses
Definition
the shape of a flattened circle...this is the shape of the path the planets take as they revolve around the sun.
Term
asteroid
Definition
a rocky object orbiting the sun between the planets
Term
meteor
Definition
piece of rock or dust from space burning up in Earth's air
Term
meteorite
Definition
a rock from space that has passed through the Earth's air and landed on the ground
Term
comet
Definition
a frozen chunk of ice and dust that orbits the sun
Term
constellation
Definition
a group of stars that form a pattern
Supporting users have an ad free experience!