PPT-Star in a Box Exploring the lifecycle of stars

White slides are section headings and are hidden from the presentation Show or hide the slides in each section as appropriate to the level required Rough guide to the levels Beginner KS3 Intermediate KS4 GCSE. The Sun and the Stars. The Sun and the Stars. Binary stars:. Most stars are found in binary or multiple systems.. Binary star systems consist of 2 stars which are gravitationally bound with each star. Amole. Spectra of Science. 2013. What are Stars?. A large celestial body of hot gas that emits light. Greeks grouped stars in patterns called constellations. Use the unit light-year to measure distances between stars. "There are countless suns and countless earths all rotating around their suns in exactly the same way as the seven planets of our system. We see only the suns because they are the largest bodies and are luminous, but their planets remain invisible to us because they are smaller and non-luminous. The countless worlds in the universe are no worse and no less inhabited than our Earth”. B-V color index way of quantifying this - determining spectral class - using two different filters. one a blue (B) filter that only lets a narrow range of colors or wavelengths through centered on the blue colors, . Earth Science 11. Chapter 21. Constellations. Constellation:. A groups of stars that appear to form patterns in the sky.. 88 different constellations can be seen from the Northern and Southern hemispheres.. How big are stars?. How far . away?. How . luminous?. How hot?. How old, and how much longer to . live?. C. hemical . composition?. How are they moving?. Are they isolated or in clusters?. 1. How Far Away are the Stars?. Ursa. Minor (Little Dipper). Ursa. Major (Big Dipper). Cassieopa. Cepheus. Draco. Orion. Bootes. Capella. Castor & . Pollux. (Gemini). Corona Borealis. Saggitarius. Hercules. Fomahault. (Pieces). constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. Stars 1. Patterns of stars – constellations a. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are not Stephen Hawking - The Birth of Stars - YouTube. Life Cycle of Stars. Nebula – large cloud of gas and dust spread out in an immense volume. Life Cycle of Stars. Gravity pulls gas and dust together in the densest part of the nebula. A . star is a massive ball of plasma that emits . light and electromagnetic energy . throughout the universe. . While . there is only one star in our solar system, there are billions upon billions of stars throughout our galaxy and exponentially more in the billions of galaxies in the universe. Stage 1. Stage 3. Stage 2. Stage. 1. Stage. . 2. Stage 3. Main sequence stage, last. the longest. Star stays until all H. 2 . fuel . is used up (converted to He). He core shrinks and . Contracts to produce . Name the force that tries to compress/collapse a star? Name the process that happens in the core of a star preventing collapse and powering the star.. About how long does our sun live as a main sequence star?. Stars form in a cloud of dust and gas in space called a nebula.. How do stars form?. A force from outside the nebula causes the cloud to condense into stars. . Example: a shockwave. Gravity causes the particle in the cloud to contract..