PPT-Isotopes, Ice Cores and Climate Change

Laura Marschke Southwest Early College Overview What are we learning about today What is an isotope What are isotopes used for Behind the scenes of ice cores The science of ice cores and isotopes. Seth T. . Warthen. Graduate Student – ASP. The Ohio State University. Geography 5921. Tipping Elements in the Earth’s Climate System. -. Lenton. et al. (2008). Abrupt Tropical Climate Change: Past and Present. Isotopes. Isotopes. : atoms of the same element that have different numbers of neutrons. Two isotopes of an element will have the same atomic number, but different mass numbers (and atomic masses). CARBON (above right). Jasmine . Sudhu. 5/30/13. Chemistry 10.. What are Isotopes?. Isotope – Is the average mass of atoms. You round of the atomic mass to the nearest whole numbers to get your two possible Isotopes.. Example – Boron- Atomic mass = 10.81. After rounding to the closet two whole numbers which are 10 and 11, your . Climate Change. What is the difference between weather and climate? . Weather. What is it?. How the atmosphere is . CURRENTLY. behaving.. How it affects humans . TODAY. .. . Can change from minute to minute, day to day, and season to season.. Unfortunately, most of our earth’s layers are invisible to us.. This is about all we normally see….. Most of our earth’s layers are hidden under our feet...so…. How do we know all about Earth’s layers when they are mostly . What is it?. Isotopes are different versions of atoms having the same number of protons but different numbers of neutrons.. Atomic Mass. The mass of each isotope is different due to the different number of neutrons.. Climatology. is . the study of Earth’s climate and the factors that affect past, present, and future climatic changes.. Climate describes annual variations of temperature, precipitation, wind, and other weather factors.. Some of the infrared radiation . passes through the atmosphere, . and some is absorbed and . re-emitted in all . directions by . greenhouse gas . molecules. The . effect of this . is to warm . the Earth’s . Neutrons. Electrons. Charge. 1. 0. -1. Mass . 1 . amu. 1 . amu. 0. Location. nucleus. nucleus. Electron cloud. Isotopes. Atoms that have the same number of protons, but have different numbers of neutrons. What number equals the number of protons?. Atomic Number. From the periodic table – . How is the mass of a “regular” (most abundant) atom determined?. Protons Neutrons = Atomic Mass. An Isotope is defined as…. Atoms of the same element . can. have different . mass numbers.. Isotopes. How can atoms of the same element end up with a different mass?. Shoulder Partners. Frederick Soddy. (1877-1956) proposed the idea of isotopes in 1912. Planet. Paper 2, Module . 3. Monday, 02 March 2020. What evidence do we have for climate change?. Focus Task. How has the climate changed overtime?. Key Words. Task: . Identify what is meant by the key words. . Scientific Basis for Human Induced Climate Change. Jagadish Shukla. Department of Atmospheric, Oceanic and Earth Sciences (AOES),. George Mason University (GMU). Center for Ocean-Land-Atmosphere Studies (COLA). Kerry Emanuel. Department of Earth, Atmospheric, and Planetary Sciences, MIT. This Evening’s Program. Overview . of climate and climate change. . Effect of global warming on extreme weather. Common Misperceptions about Climate and Climate Science.