Type
Matching Worksheet
Description

unstable after middle age, a star runs out of fuel for nuclear reactions and becomes a brilliant star called: red giant
middle age stars burn hydrogen gas in their cores to make: helium
When the hydrogen in the core is gone it burns the hydrogen in a shell around the core
Nuclear reaction that happens when a star begins to burn the helium it previously made different nuclear reaction
The New different nuclear reaction makes other elements including carbon and oxygen
The changes in nuclear reactions make the stars unstable
Star 300 and 400 times the dameter of our Sun Betelgeuse
Betelgeuse has a visible central hot spot and a thin outer shell of hydrogen gas
Our star, the sun, will last longer than the blue-white stars because it is lighter
Heavier blue white stars shine so brightly burn fuel faster
When our star, the sun turns to a red giant it will englulf the planets
The planets that will burn to a crisp when our Sun is a red giant Mercury, Venus, Earth

Life cycle of a star Crossword

Type
Crossword
Description

an interstellar cloud of dust, hydrogen, helium and other ionized gases. Stellar nebula
a star with an initial mass of 0.5 to 8 times that of Earth's sun. It spends most of its time on the main sequence as an orange, yellow, or blue white dwarf star. Average star
When a nebula collects enough mass, it begins to collapse under its own gravity. The internal pressure created by this collapse is enough to trigger fusion of hydrogen deep in its core. Massive star
a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses (M☉)) in a late phase of stellar evolution Red giant
an aging giant star that has consumed its core's supply of hydrogen fuel. Helium has accumulated in the core, and hydrogen is now undergoing nuclear fusion in the outer shells. These shells then expand, and the now cooler star takes on a red color. They are the largest known stars. Red supergiant
an astronomical event that occurs during the last stellar evolutionary stages of a massive star' s life, whose dramatic and catastrophic destruction is marked by one final titanic explosion. Supernova
a ring-shaped nebula formed by an expanding shell of gas around an aging star. Planetary nebula
is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. White dwarf
a region of space having a gravitational field so intense that no matter or radiation can escape. Black hole
are created when giant stars die in supernovas and their cores collapse, with the protons and electrons essentially melting into each other to form neutrons. Neutron star
a contracting mass of gas that represents an early stage in the formation of a star, before nucleosynthesis has begun. Protostar
a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter. Nebula

Life Cycle of Stars Crossword

Type
Crossword
Description

The brightness of a star's light is called magnitude
The stars heats up and hydrogen is converted to helium nuclear fusion
Huge cold clouds of gas and dust nebula
The earliest stage of a star's life in which the contracting cloud heats up and becomes a protostar
Stars spend most of their lives here as long as hydrogen fuses into helium main sequence
Once medium-sized stars run out of nuclear fuel, the star becomes a red giant
Have no fuel, but glow from leftover energy white dwarf
When a massive star runs out of hydrogen, it becomes a red supergiant
The explosion of a large star that causes heavier elements to form supernova
These stars form from small supergiants neutron star
A place in space where gravity is so great that light can't escape black hole
The most massive stars form ____ iron
A white dwarf that has cooled black dwarf
Forms from the outer layers of hydrogen and helium that are cast off when a red giant becomes a white dwarf planetary nebula
How long a star lives depends on its mass
_____________ are rich in hydrogen young stars
_________ use up their fuel more quickly large mass stars
Stars that have less mass then the sun can live up to ____ billion years two hundred
A medium-mass star will live for about ___ billion years ten
A star that is more massive than the sun may live only about ten _____ years million

Life Cycle of a Star Crossword

Type
Crossword
Description

A ________ is a large cloud of gas and dust nebula
A_______ is what a medium star will turn into when their fuel runs out red giant
A_______ is the core of a star that has cooled white dwarf
A_______ is the remains of a white dwarf black dwarf
A________ can occur when a star is dying black hole
A_______ is a red giant that has exploded supernova
What is a contracting cloud of gas and dust protostar
A_______ is any star that is fusing hydrogen in its core Main sequence star
A_______ is what a massive star will turn into when its fuel runs out super giant
A_______ is created when massive stars die nuetron star

Solar system Crossword

Type
Crossword
Description

the envelope of gases surrounding the earth or another planet. Atmosphere
a large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune. Gas Giant
the force that attracts a body toward the center of the earth, or toward any other physical body having mass. Gravity
a planet whose orbit lies within the asteroid belt, i.e., Mercury, Venus, Earth, or Mars. Inner planet
the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution. Orbit
a planet whose orbit lies outside the asteroid belt, i.e., Jupiter, Saturn, Uranus, or Neptune. outer planet
a celestial body moving in an elliptical orbit around a star. Planets
planet is a planet that is composed primarily of silicate rocks or metals. Rocky Planets
the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets. Solar System
the time taken by a planet to make one revolution around the sun. year
is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune. Pluto
The Great Red Spot is a giant, spinning storm in Jupiter's atmosphere. Great Red Spot
a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun Comet
noun: meteor; plural noun: meteors a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light Meteor
a small rocky body orbiting the sun. Asteroid
a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere. Meteroid
a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such. Dwarf Planet

Planets Crossword

Type
Crossword
Description

the envelope of gases surrounding the earth or another planet Atmosphere
a large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune. Gas Giant
the force that attracts a body toward the center of the earth, or toward any other physical body having mass Gravity
a planet whose orbit lies within the asteroid belt Inner planet
the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution Orbit
a planet whose orbit lies outside the asteroid belt Outer planets
a celestial body moving in an elliptical orbit around a star Planets
is a planet that is composed primarily of silicate rocks or metals Rocky planets
the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets Solar system
the time taken by a planet to make one revolution around the sun Year
s usually the most distant planet in the solar system Pluto
is a great anti-cyclonic (high pressure) storm akin to a hurricane on Earth, but it is enormous (three Earths would fit within its boundaries) and it has persisted for at least the 400 years that humans have observed it through telescopes Great Red Spot
a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun Comet
a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light Meteor
a small rocky body orbiting the sun Asteroid
a small body moving in the solar system that would become a meteor if it entered the earth's atmosphere Meteroid
a celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such Dwarf Planets

Life Cycle of Stars and HR diagram Crossword

Type
Crossword
Description

Made of dust and gas Nebula
Stage before a black dwarf White dwarf
Our sun is currently in this stage Main Sequence
This measures how bright a star is Luminosity
H.R. stands for Hertzsprung-Russell
This star has an explosion as bright as the universe Supernova
Neutron star is also known as a Pulsar Star
The hottest stars are this color Blue
Located at the top right corner of an HR diagram Red super giant
The 4th stage of a stars life Planetary nebula
The closest star to us (not the sun) Proxima Centauri
How bright a star actually is Absolute magnitude
This determines how a star will live and die Mass
What gives stars their energy Nuclear reactions
When a Supernova collapses it becomes a Black hole
Stars are made of Hydrogen and Helium
This star is a pulsar star Crab pulsar
What compares a stars brightness and temperature HR diagram
Smaller stars burn fuel slower and Live longer
Main Stream Stars will stay that way for approx. 10 billion years

Components of The Universe and the Big Bang Theory Crossword

Type
Crossword
Description

Huge collection of stars? Galaxies
Galaxy with 3 main components : Disk, Bulge, and Halo? SpiralGalaxies
Galaxy that can be shaped partially or spherical? EllipticalGalaxies
Galaxy that doesn't have a distinct shape? IrregularGalaxies
Are made of gases and produce their own heat? Stars
Group of stars which are bounded gravitationally? StarNebulae
Giants cloud of gas and dust? Nebulas
Planets that have rocky surface and cores made of Iron? Terrestrial
Planets (Gas Giants) which surfaces are not solid? Jovian
A natural satellite of a planet? Moon
After moons, next largest objects (rocks) in the Solar System? Asteroids
A mixture of frozen gases and tiny particles of dust? Comets
A streak of light formed by a space rock burning up as it enters Earth's atmosphere? Meteors
Rock that strikes the Earth's atmosphere? Meteorites
Scientist that discovered the expansion of the Universe? EdwinHubble
Shift that tells us light away from us? RedShift
Shift that tells us light close to us? BlueShift
Name of the theory of the formation of the universe? BigBangTheory
Matter that does not give off ER? DarkMatter
The largest object in our Solar System? Sun

Life Cycle of a Star Crossword Puzzle

Type
Crossword
Description

A nebula slowly starts to what under the force of gravity. collapse
In the main sequence stage to form helium atoms in their core they have to fuse what kind of atoms? hydrogen
A protostar is a very hot cloud of densley packed what? gas
A shell of what kind of reactions are caused after the main sequence stage when the hydrogen fuel becomes exhausted? nuclear
A supergiant star's starts to collapse and heat up, after a helium burning red giant runs out of helium fuel in its core. This phase causes the outer layer to expand and do what. cool
In the white dwarf stage after all the outer layers drift away only what remains? core
A supernova is the what of a high-mass star. explosion
Which stage is when the compact core remains from the supernova event. neutron star
What type of star emits no heat or light? black dwarf
After the supernova event everything that remains is crushed down, forming an incredibly small, dense object known as what. black hole

Astronomy Crossword Puzzle

Type
Crossword
Description

A large cloud of gas and dust, spread out in an immense volume. nebula
A contracting cloud of gas and dust with enough mass to form a star. protostar
An object whose gravity is so strong that nothing, not even light can escape. blackhole
The brilliant explosion of a dying supegiant star. supernova
An imaginary pattern of stars in the sky. constellation
The blue-white hot core of a star that is left behind after its outer layers have expanded and drifted out into space. whitedwarf
The tendency of an object to resist any change in its motion. inertia
The force that pulls objects towards each other. gravity
A huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions. prominences
A dark area of gas on the sun's surface tht is cooler that surrounding gases. sunspots
Rocky objects revoloving around the sun that are too small and numerous to be considered a planet. asteroids
A loose collection of ice, dust, and small rocky particles, typically with a long, narrow orbit. comet
The solid inner core of a comet. nucleus
The fuzzy outer layer of a comet. coma
The small, dense remains of a high-mass star after a supernova. neutronstar
The study of moons, stars, and other objects in space. astronomy
The apparent change in position of an object when seen from different places. parallax
All of space and everything in it. universe
A huge group of a single stars, star systems, star clusters, dusts, and gas bound together by gravity. galaxy
One of the small asteroid-like bodies that formed the building blocks of the planets. planetesimals
The movement of an object around another object. revolution
The spinning motion of a planet on its axis. rotation
A small, old, relatively coolo star. reddwarf
An artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication. satellite
A stream of electronically charged particles that emanate from the sun's corona. solarwind

The Solar System Crossword

Type
Crossword
Description

The envelope of gases surrounding the earth or another planet Atmosphere
A large planet of relatively low density consisting predominantly of hydrogen and helium, such as Jupiter, Saturn, Uranus, or Neptune Gas Giant
A planet that is in our solar system and it is too small to be classified as a real planet Dwarf Planet
The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution. Orbit
The force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account Gravity
A small body moving in the solar system that would become a meteor if it entered the earth's atmosphere Meteoriod
A planet that is composed primarily of silicate rocks or metals Rocky Planets
A celestial body moving in an elliptical orbit around a star Planets
The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets Solar System
A celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun Comet
A small rocky body orbiting the sun Asteroid
A giant, spinning storm in Jupiter's atmosphere Great Red Spot
It is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune Pluto
The time taken by a planet to make one revolution around the sun Year
A planet whose orbit lies outside the asteroid belt, i.e., Jupiter, Saturn, Uranus, or Neptune Outer Planets
A planet whose orbit lies within the asteroid belt, i.e., Mercury, Venus, Earth, or Mars Inner Planets
A small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light Meteor