The science standards of learning for virginias public schools identify. The burning of hydrogen stops the gas cloud from shrinking. Major topics of study include plate tectonics, the rock cycle, earth history, the oceans, the atmosphere, weather and climate, and the solar system and universe. Examines the formation of a star and the main sequence of the stars life cycle. Stellar evolution is not studied by observing the life of a single star, as most stellar. Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Free science worksheets and notebooking pages for science journals. Stars that have between 1 and 11 times the mass of our sun form a red giant, and if theyre heavy enough, possibly even a red supergiant. Life cycles of stars read earth science ck12 foundation. What happens next in the life of a star depends on its initial mass. Upon receiving the draper award from the natl academy of science first woman ever to receive. Identify the conditions needed for fusion to occur. Life cycle of a star worksheet a star is born stages common to all stars all stars start as a nebula.
The star expands to larger than it ever was during its lifetime a few to about a hundred times bigger. The earth science standards continue to focus on student growth in understanding the nature of science. The life cycle of a star starts with dense regions in the nebula and ends in a supernova explosion. Star life and death national radio astronomy observatory.
Stars are formed in clouds of gas and dust, known as nebulae. Given what you know about earth science, can you give some examples. Examines the formation of a star and the main sequence of the star s life cycle. The sun and each of the planets of our solar system are round. Nuclear reactions at the centre or core of stars provides enough energy to make them shine brightly for many years. Radio astronomy has helped astronomers explore the life stories of stars, and here is what. Several chapters herein directly implicate a vicious cycle of ignorance. Gravity can pull some of the gas and dust in a nebula together. Betterlesson helps teachers and leaders make growth towards professional goals. Science standards of learning virginia department of education. Stellar evolution is the process by which a star changes over the course of time. Stars, much like humans, grow and change through stages of life. The diagram below shows two possible sequences in the life cycle of stars, beginning with their formation from nebular gas clouds in space. The density and temperature increase so nuclear fusion can start.
Learn vocabulary, terms, and more with flashcards, games, and other study tools. At the v grade students learn to find stars and constellations on the. The life cycle of a star a gas cloud, if big enough, starts to shrink. How does the mass of a star at its formation affect its life cycle. Whether it was a massive star some 5 or more times the mass of our sun or whether it was a low or.
Star life cycle worksheet draw a line between the correct definition for each type of star or scientific term from the options below. This star provides light and heat and supports almost all life on earth. Additionally, if you would like all of the resources together in a pdf document, that can be accessed as a complete resource here. A star is an astronomical object consisting of a luminous spheroid of plasma held together by its own gravity. In the following sections, lets examine the different stages in the life cycle of a star. Finally, students may need their earth science reference tables esrt for parts of the lesson a document used widely in the new york state earth science regents course. Keep up with the latest science news with futurism. Earth sciences education from primary school to university. When our sun becomes a red giant, it will swell to engulf the earth. Once a star like the sun has exhausted its nuclear fuel, its core collapses into a dense white dwarf and the outer layers are expelled as a planetary nebula. They wont be able to tell from the image that stars are of different sizes and masses, but they may.