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if the earth is in between the sun and the moon, then the earth can block the light on the moon & the full moon is when the earth is in between the sun and the moon -> the full moon is when the earth can block the light on the moon
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the full moon is when the earth can block the light on the moon & an object blocking light causes a shadow -> the full moon is when the earth can cause a shadown on the moon
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the full moon is when the earth can cause a shadown on the moon & a lunar eclipse is formed by earth 's shadow falling on the moon -> the full moon is when a lunar eclipase can happen
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a galaxy is held together by gravity & a galaxy is made of stars -> a galaxy is made of stars that is held together by gravity
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a galaxy is made of stars that is held together by gravity & a galaxy is a kind of very large system of stars -> a galaxy is a large system of stars that is held together by gravity
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galaxies often contain hundreds of billions of stars & galaxies are usually thousands of light years in diameter & galaxies are located millions of light years from earth -> galaxies often contains billions of stars, and are located millions of light years from earth, and are thousands of light years in diameter
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galaxies often contains billions of stars, and are located millions of light years from earth, and are thousands of light years in diameter & a galaxy is a kind of celestial body / celestial object & a celestial object has 200 billion stars, 30 million light years from earth, and 500 light years in diameter -> the objects being described are galaxies
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spiral is a kind of shape & galaxies can be classified by shape -> spiral galaxy is a type of galaxy
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spiral galaxy is a type of galaxy & the milky way is spiral in shape & the milky way is a kind of galaxy -> the milky way is a kind of spiral galaxy
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a galaxy contains dusts / stars / planets & if something contains something else, then that something is made of that something else -> a galaxy is made of dusts, stars, and planets
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a galaxy is made of dusts, stars, and planets & a galaxy is held together by gravity -> a galaxy is made of dusts, stars, and planets held together by gravity
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a space telescope captured images of star clusters that contains billions of stars & galaxies often contain hundreds of billions of stars -> the star cluster that captured by the space telescope is a galaxy
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a halo is a part of a galaxy & the milky way is a kind of galaxy -> a halo is part of the milky way
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a halo is part of the milky way & a halo contains mostly old stars -> the halo is the part of the milky way that contains mostly old stars
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a galaxy is a kind of structure & the milky way is a kind of galaxy -> the milky way is a kind of strucutre
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the milky way is a kind of strucutre & the sun is located in the milky way galaxy -> the sun is located in the structure called milky way galaxy
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galaxies often contain hundreds of billions of stars & a galaxy is a kind of structure -> galaxies are the structure that contain hundreds of billions of stars
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if an object reflects light toward the eye then that object can be seen & a moon is a kind of celestial object / celestial body -> if the moon reflects light toward the eye then the moon can be seen
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eyes are part of a human for seeing & there are humans on earth -> humans on earth can see through their eyes
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if the moon reflects light toward the eye then the moon can be seen & humans on earth can see through their eyes & the moon reflects sunlight towards the earth -> the moon can be seen by the humans on earth
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the moon reflects sunlight towards the earth & the moon orbits the earth -> the moon reflects sunlight towards the earth and it orbits the earth
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the moon reflects sunlight towards the earth and it orbits the earth & a moon is a kind of satellite -> the moon is a satellite that reflects sunlight towards the earth and orbits the earth
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the moon is a satellite that reflects sunlight towards the earth and orbits the earth & the solar system contains the moon -> the moon is the satellite in the solar system that reflects sunlight towards the earth and orbits the earth
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the moon 's surface contains flat areas & the lunar / moon 's surface contains many craters & the moon 's surface contains highlands -> the surface of the moon contains flat areas, highlands, and craters
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the earth 's surface contains many craters & the lunar / moon 's surface contains many craters -> both the moon's surface and the earth's surface contain many craters
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drier means lower in amount of water / wetness / moisture & the moon has less water / air than the earth -> the moon is drier than the earth
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earth has air & the moon has no air on it -> the difference between the earth and the moon is that the moon has no air on it
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mars is a kind of planet & phobos orbits mars -> phobos orbits the planet mars
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phobos orbits the planet mars & moons orbit planets -> phobos is a kind of moon
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light reflecting off of an object causes that object to be visible to the observer & the moon reflects sunlight towards the earth & a moon is a kind of celestial object / celestial body -> the moon reflecting sunlight towards the earth cause the moon to be visible to the observer
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a dwarf planet usually is much smaller in size / in mass than other planets & pluto is a kind of dwarf planet -> pluto is a dwarf planet that has much smaller mass than other planets
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pluto is a dwarf planet that has much smaller mass than other planets & a dwarf planet is a kind of celestial object -> pluto is a celestial object that has much smaller mass than other planets
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pluto is a celestial object that has much smaller mass than other planets & as the mass of a celestial object decreases , the surface gravity of that celestial object weakens -> pluto will have much less gravity than other planets
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our sun is located at the center of our solar system & our solar system is located at the edge of the milky way galaxy -> our sun is located at the center of a solar system that is at the edge of the milky way galaxy
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a star is a kind of celestial object / celestial body & a star produces light and heat -> a star is a celestial object that produces light and heat
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a star is a celestial object that produces light and heat & the sun is the star that is closest to earth -> the sun is the celestial object that produces light and heat and is closest to earth
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a candle is a source of light when it is burned & a source of something emits / produces / generates / provides that something -> a candle produces light when it is burned
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a candle produces light when it is burned & a star produces light and heat -> both candles and stars produce light
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plasma is formed by electrons separating from atoms in stars & electrons are pulled away from atoms in a star by high temeprature -> plasma will be formed by high temperature pulling electrons away from atoms
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plasma will be formed by high temperature pulling electrons away from atoms & plasma is a kind of state of matter -> plasma is the state of matter that is formed by high temperature pulling electrons away from atoms
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the sun is located near the edge of the milky way galaxy & the sun is average in size for a star in our galaxy -> the sun is an average sized star located near the edge of the milky way galaxy
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the sun is an average sized star located near the edge of the milky way galaxy & average is similar to medium -> the sun is an medium sized star located near the edge of the milky way galaxy
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a source of something emits / produces / generates / provides that something & a star is a source of light / light energy through nuclear reactions -> a star emits light through nuclear reactions
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a star emits light through nuclear reactions & a star is a kind of celestial object / celestial body -> a star is a celestial body that emits light through nuclear reactions
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a star is a celestial body that emits light through nuclear reactions & astronomical is similar to celestial -> a star is an astronomical body that emits light through nuclear reactions
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the formation of something is a kind of process & nuclear fusion causes star formation & if something causes a process then that something is required for that process -> nuclear fusion is required for star formation
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nuclear fusion is required for star formation & if something requires something else then that something else is important to that something -> nuclear fusion is important to star formation
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the sun is a kind of yellow dwarf & a yellow dwarf is a kind of main sequence star -> the sun is a kind of main sequence star
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the sun is a kind of main sequence star & alpha mensae is a kind of main sequence star -> the sun and alpha mensae are both main sequence star
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a yellow dwarf is a kind of main-sequence star & the sun is a kind of yellow dwarf -> the sun is a kind of main-sequence star
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the sun is a kind of main-sequence star & red giant stars are greater in volume than main sequence stars -> red giant stars are greater in volume than the sun
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stars are mostly made of hydrogen and helium & stars generally have the same chemical composition -> stars generally have the same chemical composition of hydrogen and helium
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the sun is a kind of star & hydrogen is the most common element in stars -> hydrogen is the most common element in the sun
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nuclear fusion is a kind of process & nuclear fusion in a star 's core generates energy for stars to burn / shine -> nuclear fusion is the process in a star's core that generates energy for the star
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nuclear fusion is the process in a star's core that generates energy for the star & the sun is a kind of star -> nuclear fusion is the process in a star's core that generates energy for the sun
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classifying is when one sorts something by kind / type & stars can be classified by temperature, color, and brightness -> stars with different temperature, color, brightness will be classified into different types
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stars with different temperature, color, brightness will be classified into different types & stars change type during their life cycles -> stars will change in temperature, color, and brightness during their life cycles
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nuclear fusion in a star 's core generates energy for stars to burn / shine & the sun is a kind of star -> nuclear fusion in the core of the sun generates energy for the sun
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nuclear fusion in the core of the sun generates energy for the sun & nuclear fusion converts hydrogen into helium -> the nuclear fusion in the core of the sun converts hydrogen into helium
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the sun is a kind of star & nuclear fusion happens in the core of a star -> nuclear fusion happens in the core of the sun
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nuclear fusion happens in the core of the sun & the core is a kind of layer of the sun -> nuclear fusion happens in the core layer of the sun
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blue stars are the hottest in temperature & blue is a kind of color -> stars that are blue in color are hottest in temperature
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earth is a kind of planet & the mass of a planet causes the pull of gravity on that planet -> the mass of the earth causes the pull of gravity on earth
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a solid object is taken from earth into space & the force of gravity is different in space from the force of gravity on earth -> the force of gravity on the solid object will change
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the force of gravity on the solid object will change & as the force of gravity changes , the weight of the object will change -> the weight of the solid object will change
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as the mass of a celestial object decreases , the surface gravity of that celestial object weakens & as the force of gravity decreases , the weight of the object will decrease -> as the mass of a celestial object decreases, the weight of an object on that celestial object will decrease
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as the mass of a celestial object decreases, the weight of an object on that celestial object will decrease & the earth has more mass than the moon -> an object weighs more on earth than on the moon because earth has more mass than the moon
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an object weighs more on earth than on the moon because earth has more mass than the moon & less is the opposite of more -> an object will weigh less on the moon than on the earth because the moon has less mass than the earth
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an object will weigh less on the moon than on the earth because the moon has less mass than the earth & a hammer is a kind of object -> a hammer will weigh less on the moon than on earth becasue the moon has less mass than the earth
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a rocket is a kind of object & the rocket escapes the gravitational pull of earth & earth is a kind of planet -> the rocket escaping the gravitational pull of earth is an example of an object escaping the gravitational pull of a planet
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the rocket escaping the gravitational pull of earth is an example of an object escaping the gravitational pull of a planet & if an object escapes the gravitational pull of a planet, then the force of gravity on that object will change -> the force of gravity on the rocket changes when it escapes the gravitational pull of earth
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the force of gravity on the rocket changes when it escapes the gravitational pull of earth & as the force of gravity changes , the mass of the object will stay the same -> the mass of the rocket will stay the same after the rocket escapes the gravitational pull of earth
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the force of gravity on the rocket changes when it escapes the gravitational pull of earth & as the force of gravity changes , the weight of the object will change -> the weight of the rocket will change after the rocket escapes the gravitational pull of earth
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the mass of the rocket will stay the same after the rocket escapes the gravitational pull of earth & the weight of the rocket will change after the rocket escapes the gravitational pull of earth -> the mass of the rocket will stay the same and the weight of the rocket will change after the rocket escapes the gravitational pull of earth
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earth is a kind of planet & mars is a kind of planet & earth is greater in mass than mars -> earth is a planet that has a greater mass than the planet mars
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earth is a planet that has a greater mass than the planet mars & as mass of a planet / of a celestial body increases , the force of gravity on that planet will increase -> the force of gravity on earth will be greater than on mars
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the force of gravity on earth will be greater than on mars & as the force of gravity increases , the weight of objects will increase -> objects will weigh more on earth than on mars because the force of gravity is greater on earth than on mars
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mars is a kind of planet & earth is a kind of planet & earth is greater in mass than mars -> earth is a planet that has a greater mass than the planet mars
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earth is a planet that has a greater mass than the planet mars & as mass of a planet increases , the force of gravity on that planet will increase -> the force of gravity on earth will be greater than on mars
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the force of gravity on earth will be greater than on mars & as the force of gravity decreases , the weight of the object will decrease -> objects will weigh less on mars than on earth because the force of gravity is less on mars
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the force of gravity on earth will be greater than on mars & gravitational force is similar to force of gravity & the gravitational force of a planet does not change the mass of an object on that planet or celestial body -> objects will have the same mass on earth and on mars
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objects will weigh less on mars than on earth because the force of gravity is less on mars & objects will have the same mass on earth and on mars -> objects will weigh less and have the same mass on mars than on earth
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the mars rover is a kind of vehicle & a vehicle is a kind of object -> the mars rover is a kind of object
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objects will weigh less and have the same mass on mars than on earth & the mars rover is a kind of object -> the mars rover will weigh less and have the same mass on mars than on earth
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the gravitational force of a celestial object does not change the mass of an object on that planet or celestial body & as the mass of a celestial object decreases , the surface gravity of that celestial object weakens -> as the mass of celestial object decreases, the mass of the object on the celestial object will stay the same
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as the mass of a celestial object decreases , the surface gravity of that celestial object weakens & as the force of gravity decreases , the weight of the object will decrease -> as the mass of a celestial object decreases, the weight of an object on that celestial object will decrease
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the earth has more mass than the moon & a moon is a kind of celestial object & earth is a kind of celestial object -> earth as a celestial object has more mass than the moon as a celestial object
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earth as a celestial object has more mass than the moon as a celestial object & less is the opposite of more -> the moon as a celestial object has less mass than earth as a celestial object
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as the mass of celestial object decreases, the mass of the object on the celestial object will stay the same & as the mass of a celestial object decreases, the weight of an object on that celestial object will decrease & the moon as a celestial object has less mass than earth as a celestial object -> an object will weigh less but have the same mass on the moon than on earth
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an object will weigh less but have the same mass on the moon than on earth & a rocket is a kind of object -> the rocket will weigh less but have the same mass on the moon than on earth
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as the force of gravity decreases , the weight of the object will decrease & as the mass of a celestial object decreases , the surface gravity of that celestial object weakens -> as the mass of a celestial object decreases, the weight of an object on that celestial object will decrease
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as the mass of a celestial object decreases, the weight of an object on that celestial object will decrease & the earth has more mass than the moon -> an object weighs more on earth than on the moon because earth has more mass than the moon
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an object weighs more on earth than on the moon because earth has more mass than the moon & less is the opposite of more -> an object will weigh less on the moon than on the earth because the moon has less mass than the earth
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an object will weigh less on the moon than on the earth because the moon has less mass than the earth & an astronaut is a kind of object -> an astronaut will weigh less on the moon than on earth because the moon has less mass than the earth
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getting information sometimes requires observing / observation & a telescope is used for observing stars by astronomers -> getting information about stars requires using a telescope
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getting information about stars requires using a telescope & a computer is used for communication / finding information -> a telescope and a computer can be used to getting information about stars and communicate the information
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a moon is a kind of celestial object / celestial body & detailed observation of celestial objects requires a telescope & a planet is a kind of celestial object / celestial body & a star is a kind of celestial object / celestial body -> detailed observation of planets, stars, and moons requires a telescope
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as light pollution increases , seeing the stars will be harder & a telescope is used for observing stars -> as light pollution increases, using telescope to see the stars will be harder
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as light pollution increases, using telescope to see the stars will be harder & as distance to a city decreases , the amount of light pollution will increase -> as distance to a city decreases, the increased light pollution will make using telescope to see stars harder
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making discoveries requires observing & a telescope is used for observing the sky by astronomers -> making discoveries about the sky requires using a telescope to observe the sky
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