Fusion releases great amounts of energy over millions of years. Eventually, some stars explode, producing clouds of heavy elements from which other stars and planets could later condense. Predict the relative stage in respect to a star's life cycle, given the characteristics of the star. There is order in the universe. The stars differ from each other in size, temperature, and age, but they appear to be made up of the same elements that are found on the earth and to behave according to the same physical principles.
Most stars are in systems of two or more stars orbiting around one another.
The universe contains many billions of galaxies, and each galaxy contains many billions of stars, to the naked eye, even the closest of these galaxies is no more than a dim, fuzzy spot. Describe the sun's stage within the star cycle. Infer the steps in the evolution of our sun. Differences in densities and temperatures results in layers in both ocean and atmosphere. Describe the behavior of density currents after combining salt solutions of varying concentrations.