Introduction * What is the definition of Earth Science? All sciences that seek to understand Earth and it’s surrounding space. * What are the sub-disciplines of earth science (geology, meteorology, oceanography, and astronomy)? Know the definition of each of these. Geology is the study of Earth divided into two broad areas –Physical and historical. Physical Geology examines the materials comprising earth, Historical Geology is to understand the origin of earth. Meteorolgy is the study
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An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination. Because the wavelength of an electron can be up to 100,000 times shorter than that of visible light photons, the electron microscope has a higher resolving power than a light microscope and can reveal the structure of smaller objects. Electron microscopes are used to investigate the ultrastructure of a wide range of biological and inorganic specimens including microorganisms, cells, large
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The periodic table is a table in which all of the known elements are listed. The table arranges the elements in order of increasing proton number to show the similarities of chemical elements. Therefore elements with structural similarities & atomic number are placed together. These elements can be placed into two different categories, metals & non-metals. These elements can then be sub divided into 4 groups; Alkali, non-metals, transition & inner-transitions. If read horizontally the size of the
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Abstract: The purpose of this lab is to measure the rate of photosynthesis in isolated chloroplasts. The lab begins with adding solutions to multiple cuvettes, then adding either boiled chloroplasts, not boiled chloroplasts or no chloroplasts. After approximately 5 minute timed sessions in light, tubes are placed in spectrophotometer one at a time and the transmittance percentage is recorded for each test. Boiled chloroplasts are denatured, so photosynthesis cannot occur. Solutions in test tubes
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the number of protons with the amount of neutrons. Each isotope has a different mass number, Caesium 137 has 82 neutrons and 55 protons, therefore it is labelled Caesium 137, as 82 added by 55 equals 137. The mass numbers of isotopes also indicate the atomic weight of the isotopes, Caesium 137 is 137 atomic mass units or 137 u. The atomic mass of the elements are decided by the mass number of their average isotope. Regular Isotopes always maintain the same amount of neutrons and protons, these are called
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GCSE Physics Revision notes 2014 Contents Static and Current Electricity .............................................................................................................. 2 Properties of Waves ........................................................................................................................... 12 Uses of Waves..................................................................................................................................... 13 Forces, Moments
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With humanity coming closer and closer to finally having the ability to visit another planet, many have questioned whether or not, once we can visit Mars, if we should. Whatever one’s position on the topic, one thing can be agreed upon, that sending a manned mission to The Red Planet will be very difficult, and cost an extremely large amount of money and resources. Sending actual live people to Mars is something that is coming closer to a reality, with the chance approaching extremely fast, in the
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statically charged balloons against each other? Hypothesis We think we will be able to see a spark, because the atoms in the balloon became ions (there is a difference in number between protons and electrons). We think that if we move the balloons slowly towards each other, the attraction of the protons in the positively charged balloon attract the electrons of the negatively charged balloon enough, to let them move from one balloon to the other and we will be able to see a spark. Expectations
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is the third element on the periodic table which makes its atomic number three. The symbol that is associated with lithium is Li as shown in the spelling of my first name. The atomic mass of lithium is approximately seven. Since the number of protons and electrons are equal to the atomic number, they equal three for lithium. The number of neutrons in lithium equals four. Lithium is a light, silver-white metal which therefore makes it a solid. After the mineral it is in is heated at a very high
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makes up our planet? The atmosphere, solid earth, water, plants, animals, and people. What makes up plants animals and people? The same thing that makes up everything else, matter. What is matter made of? Atoms. And atoms are made of protons, neutrons, and electrons. Protons and neutrons can be broken down even further into the quarks up, down, charm, strange, top, or bottom. What can quarks be broken down to? Theoretical matter aka empty space. How do these things work? Energy, pure energy. When you
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