Herald Sun

acceleration of the universe’s expansion is _________. DARK ENERGY 4. The area on the H-R diagram where “normal” stars can be found is known as the _________. MAIN SEQUENCE 5. Although Copernicus' model of the solar system correctly placed the sun at the center, it still provided inaccurate predictions because it maintained that the planets' orbits were _________.

of the following is the largest?  B)  the Universe ----------- 43.  The discovery that planets move in elliptical orbits with the Sun at the focus was made by  D)  Kepler. ----------- 44.  Which of the following is NOT one of the four fundamental forces?  A)  Angular Momentum ----------- 45.  A planet moves faster in its orbit  E)  when it is nearer the Sun. ----------- 46.  Which of the following is NOT one of the four fundamental forces?  C)  Kinetic energy ----------- 48.  What does

and lakes frozen over for extended periods of time. This period of years has been labeled “The Maunder Minimum” (Hathaway) based upon the research of the astronomer Edward Walter Maunder ("Edward Walter Maunder"). Within his research, he noted the sun undergoes a cycle of sunspot activity and inactivity – this activity is also known as the magnetic activity. With the data that many researchers have gathers based upon Maunder – the earth is beginning to enter into another cycle of sunspot inactivity

The life cycle of a star is dependent on its mass. The larger the mass, the quicker it will die out, whereas stars which are no more than half the size of our Sun can live up to hundreds of billion years. However no matter how large the star is, they all begin their lives in a nursery known as a molecular cloud. A molecular cloud is a giant condensation of dust and molecular gas. They are regions of relatively dense interstellar gas and dust with hydrogen molecules as well as carbon and silicate

| |它每绕太阳公转两周， 本生就自转三周， 所以水星的一年就是它的一天半。 |There are two planets which are closer to the sun than the earth are, | |水星温度太高，体积太小， 又没有空气， 所以没有人能在水星上生活。 |called Mercury and Venus. Mercury, a small planet, is very close to the | | |sun. Every two rounds it run around the sun, it takes the rotation for | | |three

Anna Iwaniw The Pentateuch Jacob Rodgers 17 September, 2015 Short Paper #1 When it comes to the biblical story of creation, it can be wondered how it was written and told in such detail when there was no people to observe it. There are quite a few possible answers to this question including it being a story passed down through generations, or perhaps God revealed the story to the writer in some way (Schittjer, 2006). One of the theories of how the creation story could have been written is from

Today, more than ever there is a pronounced need for alternative fuels. With the rise in sea levels, warming ocean temperatures in addition to a hole in the ozone layer, Earth is suffering in so many ways, it is crying out for help; nonetheless the damage is done and as a consequence is irreversible. Energy comes in a variety of ways. From fossil fuels, to nuclear energy, to wind generated power. A majority of the population relies heavily on various types of energy for daily use. Detrimental impacts

Duval Mrs. Kent English 8th 2 February 2015 The Sun The sun is actually a star just like the stars that shine throughout the night. The sun is a medium-sized star measuring 864,948mi (1,392,000km) across--100 times the diameter of the earth (Farndon 47). The core, the convection zone, and the photosphere are four main layers of the sun. The core makes energy from hydrogen for the world’s sight (Elvis 12). About 99 percent of the energy generated by the sun through nuclear fusion is produced in its core

and any fabricated pollution without taking into account the natural factors. The earth is kept warm due to what is known as the greenhouse effect. Without it the earth would be frozen; the short wave length of ultraviolet radiation coming from the sun penetrates the atmosphere and is absorbed by the earth, which thereby warms the earth. These gases are known as greenhouse gases. The effects of global warming include increased temperature, rise in sea levels, increase in insects that spread disease

The sun that sends out light to our world is not considered as sun in the evening; it is called as a star in general because of its structure and history which most of the stars in the universe similarly have. The sun is a naturally giant star that contains many elements, and magnetically sucks everything that is close by into its body. Moreover, this almost-spherical star, along with its strong gravity, consists of the fire and lava that are made from the elements, burns and melts down all of the