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The Composition of Soil

For Students 9th - 12th
For this composition of soil worksheet, students study the make-up of soil by identifying the amount of air in the soil, the amount of water in the soil, the size of the mineral grains in the soil and the proportion of humus in the soil....
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Unit Conversion Problems

For Students 9th - 12th
In this unit conversion worksheet, learners solve 15 problems by using conversion factors to find their answers. They show all their work and express their answers in scientific notation with the proper number of significant figures.
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Black Holes...III

For Students 9th - 12th
In this black holes activity, students use a formula for time dilation which causes delays in events that occur near the black hole. They solve 6 problems using the equation.
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SI Units and Conversions Between Them

For Teachers 9th - 12th
In this SI units and conversion worksheet, students are given five problems to solve. They convert from one SI unit to another.
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DC Metrology

For Students 10th - 12th
In this physics worksheet, students complete 11 short answer questions related to general metrology. They define basic metrological terms.
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Isaac Newton's 3 Laws of Motion

For Students 9th - 12th
In this laws of motion worksheet, students review Newton's 3 laws of motion and compare force and net force. 11 matching, 18 fill in the blank, 6 word problems.
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Student Exploration: Mineral Identification

For Students 8th - 9th
In this mineral identification worksheet, students read nine vocabulary words and answer 5 short answer and fill-in-the-blank questions regarding minerals. There are four additional pages of related activities. 
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The Unit Factor and Dimensional Analysis

For Students 8th - 10th
In this unit factor and dimensional analysis worksheet, students read about how to convert from one unit to another using unit factors and how to work with square units and cubic units using dimensional analysis. They practice solving...
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Density and Buoyancy

For Students 8th - 10th
In this density and buoyancy worksheet, students read about the equation to find density and practice finding the density of substances. They read about buoyancy and match 10 terms with their definitions related to density, buoyancy and...
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Black Holes....II

For Students 8th - 10th
In this black hole instructional activity, students use the equation for time dilation to solve 8 problems including determining the time it takes to receive a GPS signal from space, the time delay for the GPS-Earth system, the distance...
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Weathering Lab

For Students 8th - 10th
In this weathering worksheet, students use limestone chips and acidic solutions of pH 2 and 7 to determine if acidic solutions contribute to the weathering of rocks. Students determine which pH weathered the rocks the most.
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The Io Plasma Torus

For Students 11th - 12th
In this plasma torus learning exercise, learners solve 5 problems including finding the dimensions of the Io torus, determining the formula for the volume of a torus, finding the actual volume of the Ion torus and finding the amount of...
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Balancing Redox Reactions

For Students 9th - 12th
In this redox reaction worksheet, high schoolers perform a redox titration in order to determine the number of iodide ions which react with each mole of iodate (V) ions in a solution.  Students calculate their answer using a given...
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Carbon Dioxide Increases

For Students 7th - 10th
In this atmospheric carbon dioxide worksheet, students use a graph of the Keeling Curve showing the increase in atmospheric carbon dioxide since 1958 to solve 6 problems. They determine the rate of increase, the find the percentage of...
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Metrics

For Students 7th - 12th
In this metrics learning exercise, students read information about the metric system. Students review the concepts of prefixes, conversion ratios, and the decimal system. This learning exercise has 17 matching, 31 fill in the blank, and...
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Black Hole...Fade-out!

For Students 9th - 12th
For this black hole worksheet, students read about how images fade to black when they reach an event horizon of a black hole. Students solve 3 problems about black holes using a given equation for luminosity. They find the time it takes...
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Modeling the Keeling Curve with Excel

For Students 9th - 12th
In this modeling the Keeling Curve worksheet, students use given data beginning in 1960 to create a mathematical model for the changes in atmospheric carbon dioxide over time. Students manipulate the equation to predict the carbon...
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Worksheet
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Chemistry Midterm Topic Review

For Students 10th - 12th
For this chemistry review worksheet, students answer and solve 95 questions about chemical reactions, hydrocarbons, functional groups, moles, acids and bases and solutions.
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Heliocentric and Geocentric Models

For Teachers 5th - 6th
In this worksheet, students read an informational article and view drawings of the two models. In this comprehension worksheet, students answer twelve questions.
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Chandra Studies and Expanding Supernova Shell

For Students 7th - 9th
In this supernova worksheet, students read about the expanding supernova shell that was discovered by the Chandra X-ray Observatory. Students solve two problems including finding the scale of the given images and determining the average...
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Worksheet
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Density of Pennies Lab

For Students 9th - 12th
For this density of pennies worksheet, student conduct an experiment to determine the metals used in the core of pennies made after 1983. Students design their own experiments using a balance and graph paper to determine the density of...
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Worksheet
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New Information From an Old Comet

For Students 5th - 8th
In this comet worksheet, students will read information about the Comet Halley that has been collected by recent space probes. Students will use this information to complete 7 short answer questions.
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Worksheet
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Food Energy

For Students 10th - Higher Ed
In this food energy learning exercise, students review calories and how calories are determined. Students calculate how much thermal energy it would take to raise certain volumes of water a certain number of degrees. This learning...
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Basics of Science

For Students 6th - 10th
In this basics of science instructional activity, students review the metric system, the difference between homogenous and heterogenous mixtures, the scientific method, and science lab first aid. This instructional activity has 15 short...

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