'Radioactive decay' diaporamas de présentation

I can: -recognize the meaning of radioactive.

Pre-Class Monday 10-21-13. From breakfast today, write down one thing you ate and label it as: acid, base, or neutral. Nuclear Changes. Chapter 9. Fundamental Forces of Nature. Electromagnetic force – the force between two charged particles (long range)

Chapter 4. Chad Stessman. Half-life. Radioactivity is a random process Half life is time it take half of the atoms of a sample to decay. Half-lives. Tritium- 3 H- half life of 12.3 years 238 U has a half life of 3.8 billion years

Physics 121: Electricity & Magnetism – Lecture 1. Carsten Denker NJIT Physics Department Center for Solar–Terrestrial Research. Electric Charge. Electromagnetism Electric Charge Conductors and Insulators Coulomb’s Law Charge is Quantized Charge is Conserved. Coulomb’s Law.

Nuclear Reactions. To investigate the composition of gold foil using alpha particles (i.e. to explain the model of an atom). vacuum. q. a -source. zinc sulphide detector. gold foil. Nuclear Reactions. The equipment used:. Nuclear Reactions.

12. C. 6. Nuclear Symbols. Mass number  Atomic number  Carbon-12. Nuclear Reactions. Unstable nuclei undergo spontaneous changes that change their number of protons and neutrons. A nuclear reaction is a reaction that affects the nucleus of an atom. Radioactive particles rays.

The Fossil Record . Section 17–1 This section explains how fossils form and how they can be interpreted. It also describes the geologic time scale that is used to represent evolutionary time . . Fossils and Ancient Life . Scientists who study fossils are called___ . . paleontologists.

Nuclear Reactions. Alpha, Beta, and Gamma Decay. CS 4.2. State what is meant by alpha, beta and gamma decay of radionuclides. CS 4.3. Identify the processes occurring in nuclear reactions written in symbolic form. The Atom. The atom consists of two parts:. 1. The nucleus which contains:.

PALAEONTOLOGY. The study of fossils. © 2008 Paul Billiet ODWS. The formation of fossils. Fossils are generally of rock that had replaced the preserved organism or its traces It usually occurs when the organism is covered quickly so it is preserved

UNIT SIX: Earth’s Structure. Chapter 18 Earth’s History and Rocks Chapter 19 Changing Earth Chapter 20 Earthquakes and Volcanoes. Chapter Eighteen: Earth’s History and Rocks. 18.1 Geologic Time 18.2 Relative Dating 18.3 The Rock Cycle. 18.1 Learning Goals.

0. 1. 0. 2. 0. 3. 0. RADIATION. Energy in the form of particles or electromagnetic waves emitted from the nuclei of unstable atoms. 4. 0. RADIATION. The term really includes all forms of electromagnetic radiation Radio Waves, Infrared, Visible Light Ultraviolet, X-rays,  -rays

End of Year Review Geologic Evidence of Change Over Time. Wake County 8 th Grade Science Curriculum. Fossil: evidence of past life preserved in rock; Different kinds of fossils are: Petrified fossil: minerals replace all or part of an organism. Change Over Time Geologic Evidence.

Earth Quakes. Tectonics NOTES page 3. ©Mark Place, 2009-2010 www.LearnEarthScience.com. Key Concepts & Questions. What is the driving force behind crustal movement ?. Key Concepts & Questions. Convection Currents in the Mantle. On to the next question:.

Introduction to Radiation: Definition of Terms. ©Health Physics Society. Introduction to Radiation. Objectives To provide useful information about radiation for interested individuals To introduce basic concepts of radiation and radioactivity

PC. PC. PC - PHA (multichannel scaling). Linear Amplifier. LabPro Vernier. 3” x 3” NaI. Geiger Counter Vernier SRM-BTD. Pre-Amp. HV. source. source. Figure 3 Sodium Iodide Spectrometer. Figure 5 Geiger Counter System. A. l A. B. l B. C. 1174 keV. 137 Cs.

Chapter 19. Radioactivity and Nuclear energy. This sort of chemistry doesn’t involve the electrons It’s all wrapped up in the nucleus Think about nuclear processes and what parts of our lives are they involved in… Nuclear weapons, power plants, radioactive dating, nuclear medicine.

Nuclear Chemistry (Topic for Regents exam, SAT II exam and AP exam). Video Animations. Online resources from our TB for ch 21 (discovery: alpha, beta and gamma radiation)

Relative & Absolute Dating. Unit 4 Lesson 3. . Rocks Record Earth History. Discovering Earth ’ s History.  Rocks record geological events and changing life forms of the past.

Radioactive Materials. Radioactive Materials. Elements that emit radiation all the time are called radioactive Radioactive elements that are found in the world around us emit background radiation Background radiation comes from rocks, food, outer space etc. Radioactive Materials.

Lecture 3 Geologic Time, Sediments, and Sedimentary Rocks. CEE 437 Engineering Geology I Oct. 8, 2002. Sedimentary Rocks and Geologic Time. Geologic Time Scale and it Origins Sedimentary Rock Types Depositional Environments Engineering Properties. Relative Time. Principle of Superposition