Force and Motion: Facts. Motion makes the world go 'round. Motion makes the moon go 'round too. In fact, motion makes lots of things go. When we think of motion we often think of cars, bicycles, kids running, basketballs bouncing and airplanes flying.
What are stars made of? Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb. Even though it is constantly exploding in a nuclear reaction, the Sun and other stars are so large and have so much matter in them that it will take billions of years for the explosion to use all the fuel in the star.
the planets in our solar system shine by reflecting the light that they receive from the sun back into our eyes the sun is a star stars make their own light by converting hydrogen into helium within their coresthis releases the energy that we see coming from starsplanets are round they orbit stars and are not satellites of another planethe planets in our solar system shine by reflecting the light that they receive from the sun back into our eyes the sun is a star stars make their own light by converting hydrogen into helium within their cores this releases the energy that we see coming from stars planets are round