Clumps of metal and rock. Mainly found in the asteroid belt, located between Mars and Jupiter
Objects consisting of rock, dust and ice that travel in the universe at high speeds. When they approach the sun they vaporise and produce a trail.
An astronomical unit of distance. One ly is equal to the distance that light travels through space in a single year.
The galaxy in which our solar system is located
A body that has a sufficiently large mass and that orbits a star. Our solar system contains 8 of these, all of which orbit the sun.
A star formed from a cloud of dust and gas being pulled together by gravitational attraction. Fusion reactions occur here.
A large system of billions of galaxies
A system containing billions of stars
Planets that have a gaseous composition, often involving hydrogen and helium. These are Neptune, Jupiter, Uranus and Saturn in our solar system
Planets that have a solid composition, often composed of metals or rocks. These are Mercury, Venus, Earth and Mars in our solar system.
The planet with visible rings
The furthest planet from the Sun
The most mysterious thing in space
The first man to step on the moon
Galileo improved this
This gives Neptune it's blue colour
The hottest planet
Another word for the Sun
It takes 28 day to go round the earth
Our galaxy name
What is it called when the moon is blocking the sun?
The path a planet moves around the sun
An imaginary straight line joining the North and South poles of the Earth
When the moon is in the Earth's shadow and appears dark
Changes in the shape of the moon visible on Earth
The study of the universe and how it came to be
What is it called when the Earth has completed one rotation around the sun
Name the rotation of the Earth over 24 hours
What is the 29th of February
Can you see both sides of the moon from Earth?
A theory in which the moon formed elsewhere and was drawn in to our orbit.
The point in which the object orbiting the earth is at the farthest distance.
What is a natural satellite in terms of the moon?
Moon phases in which the moon is more than half full but less than full.
A theory in which the Earth and moon were formed together.
Occurs when the moon gets between earth and the sun and casts a shadow over the earth.
Moon phase when the moon appears fully illuminated from Earths Perspective.
Mixture of powdery dust and broken rock formed by impact of meteorites on the bodys surface
Any flat dark plain of lower elevation on the moon
A theory in which the moon formed from debris ejected from the Earth when a large object crashed into Earth.
The moon anytime before full moon and after new moon.
The point in which the object orbiting the earth is at the closest distance.
Roundish dent left in the surface of something by the impact of something else
A type of tide in which low tides are higher and high tides are lower
The shadow cast by the moon over an area experiencing a partial eclipse
When the visible part of the moon is less than Half full
Rods of light colored debris stretching out from the center
The debris surrounding an impact crater
During full and new moons the gravitational forces of the sun and moon combine to produce the highest tides also called-
optical telescopes are housed in
path of a satellite around another object
an object that orbits Earth
final stage of the space program to reach the moon
space probe launched in October 1997 to study Saturn
arrangement of electromagnetic waves according to wavelengths
John Glenn became the first American to orbit the Earth
a cosmonaut spent 438 days living and working in the _______________ Mir
optical telescopes that use concave mirror to focus light from objects are _______________________ telescopes
The Voyagers were ____________ ________________ that traveled beyond our solar system
scientists use ______________ telescopes to study radio waves traveling through space
a goal of Project __________ was to have two spacecraft hook up while in orbit
a reusable spacecraft that glides back to Earth after it leaves orbit
reflecting telescopes and ______________ telescopes are two types of optical telescopes
motors that don't require air to burn fuel
first human in space
force that pulls the satellite toward Earth
a thin layer of gases surrounding Earth.
0-17km above Earth's surface, site of weather, organisms, contains most atmospheric water vapor.
2nd layer of atmosphere; extends from 18-30 km up; location of ozone layer. Absorbs 95% of UV radiation.
layer of Earth's atmosphere immediately above the stratosphere
uppermost layer of the atmosphere, in which temperature increases as altitude increases.
the outer layer of the thermosphere, extending outward into space
transfer of heat by the movement of fluid.
direct transfer of heat from one substance to another substance that it is touching.
energy that is radiated or transmitted in the form of rays or waves of particles
a substance that reduces the transfer of thermal energy.
a measure of the pollutants in the air that is used to express how clean or polluted the air is
a scale that ranks levels of ozone and other air pollutants
Gases such as Carbon Dioxide, Methane, Nitrous Oxide, and Water Vapor.
a measure of how much of the sun's energy is reflected off an object back out to space.
the effect of Earth's rotation on the direction of winds and currents.
a sedimentary rock consisting of mainly calcium
thermal energy in transfer from one body of matter to another.
the pressure caused by the weight of the atmosphere.
The arrangement of electromagnetic radiation
This object uses convex lenses, which are curved outward like the surface of a ball.
A curved mirror to direct light
This launched in 1990 by the space shuttle Discovery
What object is used to study radio waves traveling through space
These objects differ according to the types of fuel used to launch them.
Any object that revolves around object
The result of the satellite traveling forward wile at the same time being pulled by toward the Earth is a curved path
An instrument that gathers information and sends it back to Earth
He studied Jupiter's moons, rings and magnetic fields
The U.S. program to reach the Moon began with what
The next step in reaching the Moon was
The final stage of the U.S. program to reach the Moon
The reusable spacecraft that transports astronauts, satellites, and other materials to and from space is
has living quarters, work and exercise areas and all the equipment and support systems needed for humans to live and work in space
Currently on its way to Saturn