Preview

Science B Notes

Powerful Essays
Open Document
Open Document
3731 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Science B Notes
cientists have used different types of evidence to prove the many changes that have taken place in the universe and on our own planet over time. Living organisms have also adapted to the changing environmental conditions. In this theme there are four contexts:

1 Our changing universe

2 Our changing planet

3 Materials our planet provides

4 Using materials from our planet to make products

Additional guidance 2. Knowledge of telescopes should be limited to their use: no working details are required.

4. Treatment of red-shift should be limited to a study of the black lines within the spectrum.

Our changing universe Candidates need to understand that: For many centuries, our ancestors thought the Earth was the centre of the universe. Science has since taught us that this is incorrect. We know that the Earth lies within the Milky Way galaxy (a group of stars), which is located somewhere within the universe. Scientists have discovered that the Sun is one star in the Milky Way. Even smaller in scale than a galaxy is a solar system. Our solar system comprises one star (the Sun) and planets orbiting it. Scientists use many different techniques to observe and search for patterns in the universe in an attempt to understand and gather evidence concerning how it began, what it is like and how it is changing. They have gathered much evidence from the use of telescopes, both on Earth and in space, and from the study of light reaching us from stars in distant galaxies.

Candidates need to:

1. Know that observations of the solar system and the galaxies in the universe can be carried out on the Earth or from space.

2. Know that observations are made with telescopes that may detect visible light or other electromagnetic radiations such as radio waves or X-rays from space, and that these observations provide evidence for changes taking place in the universe.

3. Understand that if a wave source is moving relative to an observer there will be a change in

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Check and Challenge

    • 274 Words
    • 2 Pages

    1. Evidence is important because it is the foundation of a scientific theory and explains…

    • 274 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    science notes

    • 3092 Words
    • 13 Pages

    I, am writing this letter which is agreed upon by my siblings Paul Ray Davidson and Debbie Bohannon as evidence by all three of our signatures at the end of this letter. The purpose of this letter is to seek the courts approval for the sale of my father, Paul Junior Davidson’s house located at 1125 Northway Drive, Semmes, Alabama. There is a buyer for the home, should your approval be granted, for fair market value. Should you grant the sale of the home in Alabama, the proceeds would then immediately be used to purchase a house which is under contingent contract here in Texas. The house in Texas is at 1207 Bayou Glen Drive, La Porte, Texas and is further described as an updated, single story, single-family brick and veneer house consisting of two bedrooms, one bathroom (which has handicapped accessible shower), kitchen and living room. We feel that it not only in the best interest of both of our parents to be here in Texas, it is really even a matter of their well-being for their remaining years. The following paragraphs will document, in detail, just some of the facts that we base our beliefs on.…

    • 3092 Words
    • 13 Pages
    Good Essays
  • Good Essays

    btec national

    • 2371 Words
    • 12 Pages

    3) to understand the purpose of observations and how they are carried out (undertaking some on placement)…

    • 2371 Words
    • 12 Pages
    Good Essays
  • Good Essays

    chemistry 2ab notes

    • 961 Words
    • 4 Pages

    The particles are very close together. This is because of high electrostatic forces between the sea of valence electrons and the positively charged nucleus.…

    • 961 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Such as, obtaining minerals on the moon for further investigation to find the history of the moon and what it consist of. Nonetheless, with the Hubble telescope, it was capable of observing long ranges from other planets to light-years galaxies. Similarly, as the probes that could land in most areas in the solar system and return with samples. Even then, since 1960 we been searching if such life could possibly exist on Mars is possible, with over 50 attempts of sending aircrafts till August 2012. But in all the discoveries made through the equipment that was constructed all these years, established many tasks.…

    • 830 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Gilles Fontaine

    • 737 Words
    • 3 Pages

    Gilles Fontaine was born in 1948 at Lévis, near Quebec City. He went to school at Laval University in Quebec City. (AstroLab.2006) after he became an “Astroseismologist” which is an Astronomer who studies the internal structure of stars meaning to study the parts inside of the stars, by looking at changes in their light. Gilles Fontaine has won many awards like the BSC Physics award at Laval University in 1969 and the Marie-Victorian Award by the government of Quebec in 1999(Science, 2007).he was trained to study the main part of astronomy called astrophysics, to explain the characteristics of the universe, stars and planets at the university of Rochester in New York. (Fraser, Cain.2009) .He is a world expert on looking at aging stars called White Dwarf stars. A white dwarf star is the end stage of a star; it is about huge as the sun only a little bigger than the earth, it uses up its energy and becomes much smaller. After a billion years the star cools down and dies. Gilles Fontaine makes $97,320 per year in studying white dwarfs.…

    • 737 Words
    • 3 Pages
    Good Essays
  • Best Essays

    The Spitzer Space Telescope

    • 4908 Words
    • 20 Pages

    Human’s curiosity to know about the space is not new. During the early ages, humans gazed at the sky and wondered how it looks like outside the earth. This curiosity…

    • 4908 Words
    • 20 Pages
    Best Essays
  • Satisfactory Essays

    Use available evidence to analyse, using a named example, how advances in technology have changed scientific thinking about evolutionary relationships:…

    • 380 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Dark Matter

    • 330 Words
    • 2 Pages

    We observe the universe around us through many scientific means. However it is through the electromagnetic spectrum, that is everything from radio waves to gamma waves, that we learn about the objects in our world and beyond. However we can also learn about our universe through indirect means, such as the effect of gravity on light as well as larger objects like our galaxy. In fact it is this indirect method of observation that has led us to the discovery of extra-solar planets. As it turns out this indirect method has brought about the discovery of a new and strange material that may well constitute ninety percent of our universe. Where once we believed space was nothing more than random stars and planets and gas floating endlessly in a sea of nothingness, we now have proof that our galaxy and countless others are floating on and ocean of a yet unknown substance named dark matter.…

    • 330 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Introduction Galileo Galilei is considered to be the most predominant scientists during the 17th century for the astronomical discoveries that he made using a telescope. He utilized the telescope in the year of 1616. Galileo faced numerous challenges and remarkable discoveries which impacted science forever. The telescope was first invented by a Dutch eyeglass maker named Hans Lippershey in 1608, but it was Galileo who first commenced the astronomical discoveries by pointing the telescope towards the sky (Madoney, 2009). It is important to recognize Galileo’s work with telescopes, astronomical discoveries, society and the church.…

    • 1980 Words
    • 8 Pages
    Better Essays
  • Good Essays

    Doppler Effect

    • 409 Words
    • 2 Pages

    If the source moving away from the observer is emitting waves through a medium with an actual frequency f0, then an observer stationary relative to the medium detects waves with a frequency f given by…

    • 409 Words
    • 2 Pages
    Good Essays
  • Better Essays

    Alien Life Research Paper

    • 1043 Words
    • 5 Pages

    look for them. During this time, the space age had dawned, and science was anxious to know…

    • 1043 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Sci Labs Notes

    • 2424 Words
    • 10 Pages

    'scilab:needs-examples="no"' tag has been added to specify that the help page does not need example.…

    • 2424 Words
    • 10 Pages
    Good Essays
  • Good Essays

    Scientists who study space are called Astronomers or Astrophysicists. They explore the solar system in two different ways. Astronomers do it by observing celestial bodies through telescopes, while astrophysicists (a specialized class of astronomers) try to explain the observed phenomena using physical laws and theorize about what is still…

    • 31335 Words
    • 126 Pages
    Good Essays
  • Satisfactory Essays

    C.V. Raman

    • 1345 Words
    • 6 Pages

    Henry AdamsWhat nobler employment, or more valuable to the state, than that of the man who instructs the rising generation.…

    • 1345 Words
    • 6 Pages
    Satisfactory Essays

Related Topics