on bacterial growth. By observing the effects of 5 different inhibitors including alcohol‚ bleach‚ soap solution and distilled water‚ it was determined what antiseptic or disinfectant was able to best inhibit this kind of bacterial growth. Nutrient Agar was poured into a Petri dish with four quadrants and then a pipette was used to place bacterial culture on top. Using forceps‚ a filter disc was dipped into each inhibitor and then into a separate quadrant of the Petri dish. The lid of the Petri dish
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The Movement of Plate Tectonics Brandon Womac Plate tectonics have played a major role in the history of the Earth. All seven continents are where they are today due to the movement of plate tectonics. These seven continents were one big supercontinent called “Pangea” about 200 million years ago before breaking apart. The three different types of plate boundaries are convergent‚ divergent‚ and transform. These plate boundaries form due to the earth’s outer shell called the lithosphere having multiple
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Plate Tectonics and Earth Movement The Lesson Activities will help you meet these educational goals: Science Inquiry—You will conduct online research in which you will collect information‚ make observations‚ and communicate your results in written form. STEM—You will analyze real-world situations to grow in your understanding of science as a creative human activity. 21st Century Skills—You will employ online tools for research‚ use critical thinking and problem solving skills‚ and independently
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water because without anything to help it‚ water cannot do anything. For example‚ if you wash your hands and you do not use any soap‚ none of the germs on your hand will be cleaned. Materials: The materials we used in this lab were a petri dish with agar‚ forceps‚ water‚ alcohol‚ hydrogen peroxide‚ antibacterial soap‚ filter paper disc‚ tape‚ and a permanent marker. Procedure: We started this lab on May 12‚ 2014. Using a permanent marker on the bottom of the dish‚ we divided it into 4 sections.
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How does the plate tectonics theory help explain the existence of fossilized marine life in rocks atop the Ural Mountains? Be sure to include a description of the specific process(es).’ Continental Collisions would be a possibility as this would birth mountain building. It is a theory that Europe and Asia collided millions of years ago. Marine life would have existed in the ocean basin between the land masses. As the continents approached‚ waters would recede from between them through subduction
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1. Compare the age of igneous rock found near the mid-ocean ridge with that of igneous rock found farther away from the ridge. The ages of the igneous rock found near the mid-ocean ridge was younger than the igneous rock found farther away from the ridge. This is because of convection currents. Magma rises because it is less dense. It is forced out of the ridge‚ it spreads apart‚ and when it cools‚ it becomes new seafloor. This is why newer seafloor (igneous rock) is younger when it is closer to
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Features Plate tectonics theory‚ which is the modern theory of the motions of Earth’s layer‚ explains how geological features‚ such as mountain ranges‚ continents‚ and bodies of water move and form. An important aspect of plate tectonics theory is that the outer layer of the earth is divided into plates which move across the earth’s surface. “These plates move relative to each other‚ typically at rates of 2-4 inches per year. As the plates move‚ they interact along their boundaries” (Plate Tectonics)
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boundaries by which an oceanic plate slides slowly under a continental plate into the Earth’s mantle‚ as the result of pressure and friction. After a long period of time the overriding continental plate is lifted up creating a mountain range. This is how the Himalayas were formed. Sometimes the extreme heat and pressure exerted on the subducting oceanic plate causes an uplift of magma from the mantle which rises above the surface‚ creating a volcano. When two plates are moving they don’t always slide
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Plate tectonic is a scientific theory of Earth Science which basically defines the large scale motions of the atmosphere of the Earth. The Plate Tectonic theory is based on the continental drift concept The theory was first developed in the first decades of 20th century. According to the Plate Tectonic theory‚ the lithosphere breaks up into the tectonic plates. Currently‚ there are seven or eight major plates in the Earth. Generally‚ the lithospheric plates remain on the asthenosphere. All the
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“EVALUATE HOW PLATE TECTONICS THEORY HELPS OUR UNDERSTANDING OF THE DISTRIBUTON OF SEISMIC AND VOLCANIC EVENTS” In this essay I am going to look in detail at plate tectonic theory and how it can be used to explain seismic and volcanic events worldwide. However‚ I will also look at other potential causes of these events‚ and some evidence that does not follow the theory that all these events are caused by plate boundaries. I am going to look at a range of case studies from differing scales
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