REVIEWER FOR SCIENCE QUIZ BEE CONTESTANTS GRADE 7 1. A great Greek philosopher‚ he was the first person to study nature systematically. ARISTOTLE 2. He laid the foundation of modern scientific thought and assembled materials for an organized encyclopedia of all knowledge. ARISTOTLE 3. He was the foremost natural philosopher in ancient times. ARISTOTLE 4. A Benedictine nun‚ she contributed the medical work “Causea et Curae et Physica”. HILDEGARD OF BENGEN 5. An astronomer who proposed
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Types of pollution Pollution is the presence of damaging and dangerous substances‚ mostly a contaminant or toxin‚ which causes damaging impacts to the living organisms and its surrounding (All-recycling-facts.com‚ 2011). Pollutions are classified into four major types and they are land pollution‚ water pollution‚ sound pollution and air pollution (see Figure 1). The first type of pollution is land pollution. Land pollution occurs when contaminant or toxin is spread and placed on the land. “Land
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Changes in the Earth ’s Environment The 20th century‚ especially in the second half‚ has been one of rapid change in the Earth ’s environment. The impact of humans on the physical form and functioning of the Earth have reached levels that are global in character‚ and have done so at an increasingly mounting speed. 20 years ago the environment was seen as posing a threat to the future of humanity as death rates from natural hazards had increased dramatically since the turn of the century. The
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gGlobal Warming Jump to: navigation‚ search Global mean surface temperature anomaly 1850 to 2006 relative to 1961–1990 | Mean surface temperature anomalies during the period 1995 to 2004 with respect to the average temperatures from 1940 to 1980 | Global warming refers to the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. The global average air temperature near the Earth’s surface rose 0.74 ± 0.18 °C (1.33
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Lecture 13 Lunar Eclipse * An eclipse in which the moon passes into the shadow of the Earth * Umbra: the portion of the shadow that receives no direct sunlight from the light source * Penumbra: the portion of a shadow that receives direct light from only part of the light source * Eclipse season: the time of year during which a solar or lunar eclipse is possible Types of Lunar Eclipses * Penumbral Lunar Eclipse: an eclipse where the moon passes through the earth’s penumbra‚
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Position Paper 1: Global Climate Change – Is climate change a natural phenomenon or caused by man? There has been some discussion and debate over the causes of global climate change and particularly‚ the causative forces that have contributed to the measured increase in the mean atmospheric temperature over the last several decades. Many researchers and climatologists have concluded‚ using climate modeling systems that the main cause is anthropogenic (man caused). Other researchers have
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INTRODUCTION Air pollution is define as the presence of chemicals in the atmosphere high enough to affect climate and harm organisms and materials. Gaseous or particulate substances released into the atmosphere in sufficient quantities or concentrations to cause injury to plants‚animals‚ or humans. Other sources of pollutants included dust and fine particulate‚ which were contributed by the inefficiency of diesel-powered vehicles and also the smoke aerosol from fires on Peninsular Malaysia. Meteorological
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Ozone Our Global Sunscreen By Mike Carlowicz t’s not often that scientists get to conduct experiments that seem like they come out of a science fiction novel or a video game. Yet‚ that is what some researchers at NASA did a few years ago. Atmospheric physicists Paul Newman and Luke Oman built a simulation of the Earth’s atmosphere and then proceeded to strip away our protective ozone layer. Their computer model reproduced the chemistry and circulation of the air; natural variations in temperatures
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Indian Geography Objective GK Questions | | | | ------------------------------------------------- Top of Form User Rating: / 27 PoorBest Bottom of Form Study guides - Competitive Exams FAQ’s & Practice Test | | Article Index | Indian Geography Objective GK Questions | Indian Geography Objective GK Questions -1 | Indian Geography Objective GK Questions -2 | Indian Geography Objective GK Questions -3 | Indian Geography Objective GK Questions -4 | All Pages | Page
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In this document‚ I jotted down some notes while putting together the reading material. These notes point out some of the reading content to pay particular attention to. The notes are divided into section headings based on the reading material. This is not meant to be a complete list of everything that you need to know from the reading Water in Atmosphere You should know what is meant by phases of water and phase changes of water. Water vapor is extremely important in the atmosphere for many reasons
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