01 12-2012 warm up – page 97
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The document contains questions about freshwater sources on Earth, percentages of usable freshwater, and a lab experiment on the cohesive and adhesive properties of water. It asks where most freshwater is located, if groundwater is commonly used, what percentage of Earth's water is usable, and to create pie charts on total water and freshwater. It also provides instructions for a lab to count drops of water placed on a penny before overflow and observe the penny at different points.
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Usable water
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this ppt is on the topic sources of water.I give description enough for presentation.i think it is nice ppt :)
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Geologic Similes
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Exploration
Ancient societies like the Egyptians, Mayans, and builders of Stonehenge began exploring the night sky to develop calendars and track seasonal changes. Greeks like Aristotle and Ptolemy developed early geocentric models of the solar system, though their ideas were inaccurate. Copernicus, Brahe, Kepler, Galileo and Newton made important contributions to establishing the heliocentric model through observations, mathematics, and physics theories like gravity. Continued exploration has led to discoveries of new objects in our solar system like Uranus, Neptune, Pluto and the Kuiper Belt.
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trates through the ground and accumulates in available underground spaces.
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This document discusses various topics related to fresh water resources including sources, uses, importance, distribution on Earth, and technologies used to provide fresh water. It notes that while 97% of water on Earth is salt water, only 3% is fresh water with over 2/3 frozen in glaciers and ice caps. The remaining fresh water is found mainly as groundwater or above ground. It identifies key sources of fresh water as surface water, frozen water, groundwater and rainwater. Important uses include agriculture, industrial, and household. Proper management of water resources is vital given increasing global demand and population.
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This document describes an experiment to investigate how soap affects the surface tension of water using the "drops on a penny" method. Students are asked to make initial predictions about whether soap will increase or decrease the number of water drops that can fit on a penny. They then perform trials counting the number of drops of tap water and soapy water that can fit. The results are analyzed to determine if the hypothesis that soap decreases surface tension was supported. Repeating the trials and calculating an average helps account for variability between drops. The control is the tap water trials and the independent variable is the type of liquid (tap water or soapy water), while the dependent variable is the number of drops that will fit.
Sources of water
this ppt is on the topic sources of water.I give description enough for presentation.i think it is nice ppt :)
sourcesofwater-161224165153.pdf
Yash Patel's presentation covered various topics relating to water resources. It began with an introduction stating that water is vital for life and makes up 70% of the human body. It then discussed details about the distribution and sources of water on Earth. Surface water sources include lakes, ponds, streams and rivers, while groundwater sources include wells, artesian wells and springs. The presentation covered overuse of water resources due to population growth, and emphasized the need for conservation of water through various domestic, industrial, agricultural and rainwater harvesting methods.
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The document discusses four geologic principles - uniformitarianism, superposition, original horizontality, and catastrophism - and compares each principle to the layers of a cake. Uniformitarianism is like a cake in that the ingredients and process of making a cake are always the same. Superposition is like a cake as the bottom layer was placed first and each subsequent layer above it is younger. Original horizontality is like cake layers in that they should be placed horizontally. Catastrophism is like a dropped cake that is suddenly ruined. The document provides additional examples comparing the principles to other everyday items like clothes piles and bicycles.
Exploration
Ancient societies like the Egyptians, Mayans, and builders of Stonehenge began exploring the night sky to develop calendars and track seasonal changes. Greeks like Aristotle and Ptolemy developed early geocentric models of the solar system, though their ideas were inaccurate. Copernicus, Brahe, Kepler, Galileo and Newton made important contributions to establishing the heliocentric model through observations, mathematics, and physics theories like gravity. Continued exploration has led to discoveries of new objects in our solar system like Uranus, Neptune, Pluto and the Kuiper Belt.
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The document discusses the Earth's rotation and revolution and how it influences time measurements. It takes the Earth approximately 24 hours to complete one rotation on its axis. The days of the week are named after objects visible in the sky, with Sunday through Friday named after the sun, moon, Mars, Mercury, Jupiter, and Venus. Months are based on the moon's cycle around Earth, taking approximately 28 days, while years represent the time for Earth to complete one revolution around the sun, which takes 365.2422 days.
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The document discusses geological principles for understanding the Earth's history using the analogy of a layer cake. It explains four key principles:
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2) Superposition - the oldest sedimentary layers are on the bottom, like how cake layers are placed with the bottom being oldest.
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This document provides instructions for an assignment on conserving energy and renewable/nonrenewable resources. Students are asked to code an article on energy conservation, create a Venn diagram comparing renewable and nonrenewable resources, and answer questions about making homes more energy efficient and the environmental impacts of energy generation. They are also to complete a RAFT writing assignment from the perspective of an alternative or nonrenewable energy source.
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09 25-2013-paleontology review
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09 24-2013-relative age
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09 23-2013-principles
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This document provides information about classifying and identifying rocks and minerals. It includes directions for an in-class activity where students will classify rocks, label the rock cycle, and answer questions about rock and mineral formation. It also describes a review game where students answer questions as a group about topics like the three main rock types, what rocks are made of, how rocks are used, and processes involved in the rock cycle.
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01 12-2012 warm up – page 97
- 2. Total Water – make sure you label your types
- 3. Total Freshwater – make sure you label your types