whenever motion with friction occurs‚ for example when a viscousfluid is stirred. Another important consequence of many types of friction can be wear‚ which may lead to performance degradation and/or damage to components. Friction is a component of the science of tribology. Friction is not itself a fundamental force but arises from interatomic and intermolecular forces between the two contacting surfaces. The complexity of these interactions makes the calculation of friction from first principles impractical
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Lab 1 – Introduction to Science Exercise 1: The Scientific Method Dissolved oxygen is oxygen that is trapped in a fluid‚ such as water. Since many living organism requires oxygen to survive‚ it is a necessary component of water systems such as streams‚ lakes and rivers in order to support aquatic life. The dissolved oxygen is measured in units of parts per million (ppm). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of
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SCIENCE REVISION CELLS Organelles Nucleus: controls the chemical reactions in the cell as well as development and reproduction of the cell. (Both animal and plant cell) Ribosomes: makes protein. (Both animal and plant cell) Rough ER: the internal delivery system of the cell. (Both animal and plant cell) Mitochondria: power plant of the cell‚ it makes energy‚ contains glucose and oxygen. (Both animal and plant cell) Cell Membrane: thin layer that surrounds the cell and holds it together
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created in 400 B.C. by the Romans. The mangonel was created like the Greek ballista but was smaller and mobile. Our catapult was based on some aspects of the mangonel. In the following I will talk about the process and materials used to make it and the science of the catapult. Some of the materials we used are: Wood- for the structure of the catapult Bungee Cords- to give the arm a bounce so when the ball is released it would go far Spray Paint- to give a base of
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Tayler Orth October 20‚ 2013 HS100 Introduction to Health Science Unit 9 Seminar Assignment Learning to be attentive at work. Your behavior at work should be one of attentiveness. To begin with‚ you need to be a good listener. Make sure you understand what is being said and what is being asked. When you take the wrong instructions you make the unit you are working for inefficient. Attend to details. Make sure every work
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Environmental Science and Human Population Worksheet 1. What would you include in a brief summary on the history of the modern environmental movement‚ from the 1960s to the present? Since 1960 to present it seems our Earth has been increasing in population faster than in prior years although it seems to have a steady flow it still increasing rapidly compared to the 1800’s or so. But since then we have also seen changes to our technology which has had a great impact on our ecosystem for
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REPORT Practical Report Grading Name: Emily Parker GRADE | A | B | C | D | E | PART A & B AIMS(*) | Formulation of questions explicitly linked to science knowledge | Formulation of questions informed by science knowledge | Formulation of questions that can be investigated scientifically | Statements of questions | Safe‚ directed use of equipment in given investigations | PART B METHOD(*) | Concise description of methods designed
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omissions or any other inconsistency herein. Any slight of www.HOLscience.com 2 ©Hands-On Labs‚ Inc. Table of Contents 5 To the instructor 6 To the Student 7 How to Perform an Experiment 9 Safety Concerns 11 Science lab Safety Reinforcement Agreement Experiments 33 Macromolecules of life 57 The Microbiome 68 Cell Membrane Transport 89 Mitosis 118 Phenotype and genotype 132 DNA and Protein Synthesis 195 The Macrobiome
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FIRST MID-QUARTER ASSESSMENT IN SCIENCE (8th Grade – Candid Puffin) Name: _____________________ Date: ________________ I. KNOWLEDGE A. Identification. Identify the law/concept that explains each of the given phenomena. Write only the letter of the correct answer on the space provided. A – Law of Inertia B – Law of Acceleration C – Law of Interaction _____ 1. Recoil of a gun when fired _____ 2. Two men find a car harder to push than a tricycle _____ 3. A body moves backward
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important for forensic scientists to be able to identify particular drugs? Discussion Question: 1. Some people believe that certain drugs such as marijuana should be legalized. Do you agree or disagree? What impact might legalization have on forensic science as a field? Notes DEPRESSANTS • Depressants slow down the central nervous system. • Law enforcement and forensic scientists often have to test for during a crime investigation‚ is alcohol. There are restrictions on alcohol use‚ such as the age of
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