THE CHEMICAL EARTH: 1. The living and nonliving components of the Earth contain mixtures ● Construct word and balanced formulae equations of chemical reactions as they are encountered Reactants → products Chemical reaction: the way atoms are joined changes‚ atoms are not created nor destroyed‚ but are rearranged Indicators: emission of light or heat‚ odour formation of a gas formation of a precipitate colour change change in state aqueous = dissolved in water‚ an aqueous solution
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The three types of fossil fuels that are used for energy provision are coal‚ oil‚ and natural gas. Fossil Fuels are the remains of once living organisms‚ but it takes centuries to form the organic matter. Coal is millions of years of decaying land vegetation (dead plants) that will form the solid fossil fuel under intense pressure. Oil is formed on the sea floor from the remains of marine microorganisms and is deposited between small spaces in between rock and sediment in liquid form. Natural
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to investigate why this happens. She hypothesizes that the relationship of the sun‚ Earth‚ and moon creates shadows on the moon. She sets up an experiment with a light bulb to represent the sun‚ a large beach ball to represent Earth‚ and a smaller foam ball to represent the moon. She researches the position of the sun‚ Earth‚ and moon at different times of a month and makes a model of the entire system. 1. Identify the parts of the scientific method in Lizzie’s experiment. Question: She has noticed
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Physics Review Notes 2007–2008 Tom Strong Science Department Mt Lebanon High School strong@dementia.org June‚ 2008 The most recent version of this can be found at http://www.tomstrong.org/physics/ Chapter 1 — About Science . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 2 — Linear Motion . . . . . . . . . . . . . . . . . . . . . . . . . . Chapter 3 — Projectile Motion . . . . . . . . . . . . . . . . . . . . . . . . Chapter 4 — Newton’s First Law of Motion - Inertia . . . . .
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INTRODUCTION TO EARTH SCIENCE(GEO211) SS/BSS/09/0103 KWAKU FRIMPONG MARFO WRITE A DETAILED ESSAY ON THE NATURE AND SCOPE OF EARTH SCIENCE. Earth Science is the name for all science that collectively seeks to understand the Earth and its neighbors in space. Some Earth scientists use their knowledge of the Earth to locate and develop energy and mineral resources. Others also study the impact of human activity on Earth’s environment and design methods to protect the planet. Some also use their
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An orchestral instrument like mine would be the flute because it has two open ends like mine does. The physics behind a flute is that it can either be an open or closed end pipe and it depends on what kind of flute you get. With the harmonics the lower holes are in the flute to shorten the air column to raise the fundamental frequency of the open air column. To make an higher note you can force the air column to sound its second harmonic‚ up an octave from the fundamental.In a flute decreasing
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Identify the three domains of development‚ as described in Chapter 1. The three domains of adult development are physical development‚ cognitive development‚ and socioemotional development. The interesting fact about the study of physical development is that it not only looks at obvious physical changes but at the unseen changes such as changes in the brain (Witt‚ Mossler‚ 2010‚ p. 3). Although both the study of physical development and cognitive development look at the brain‚ the study of physical
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3.1.1 Identify that matter is made of particles that are continuously moving and interacting The particle theory states that all matter is made up of tiny particles and they are constantly moving/continual state of motion. 1.1.2 Identify the difference between elements‚ compounds and mixtures in terms of particle theory Elements are simplest form substance meaning cannot be decomposed further physically or chemically. They are made up of same type of atoms only e.g. helium‚ oxygen. Compounds
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1. The parallax of the star 75 Leo is 0.10 and its apparent visual magnitude is +5.18. The absolute visual magnitude of 75 Leo is +5.14. 2. A G2 I star is larger in diameter and more luminous than the sun. 3. spectroscopic parallax can be used to determine the distance to a star when the spectrum of the star can be used to determine its spectral type and luminosity class. 4. Luminosity class IV objects are known as sub giants. 5. For stars
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number – atomic number Example: Lithium (Li) * # of protons + # of neutrons = mass # * 3 + 4 = 6.9/ 7 * The atomic mass is the mean of all the isotopes of Lithium in nature; round the number * Isotopes of a specific element have a varying number of neutrons * The number of neutrons do not affect the chemistry because they are not electrically active; neutral * Mendeleev organized the elements according to their atomic
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