Entry 7 - Stars
Stars Stars are giant celesti a l bodies They are composed mainly of hydrogen and helium There are billions of stars in the universe The life cycle of a star lasts billions of years The larger it is, the shorter its lifespan Some stars shine brighter than others The color of stars can vary due to their temperature The hottest stars are white or blue The coldest ones are orange or red tones They can be classified into different groups such as dwarf stars, giants and supergiants