Activity
It's About Time

The Nitrogen and Phosphorous Cycles

For Teachers 7th - 12th
How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how...
Worksheet
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What Should I Know about Biosphere?

For Students 9th - 12th
If your class is learning about the biosphere, you may find a study guide or reading guide helpful. Focusing on vocabulary, processes, and interactions, the Word document is easy to edit as needed to fit your needs. Another great...
Worksheet
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Biogeochemical Cycles Study Guide

For Students 9th - 12th
The four cycles in Earth's biogeochemical system are covered in this worksheet. Science stars fill in the blanks or define vocabulary terms pertaining to the hydrologic, carbon, nitrogen, and phosphorous cycles. This resource provides a...
Worksheet
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Dynamics of Ecosystems

For Students 9th - 12th
A set of guided notes walks your biology or environmental studies learners through the dynamics of ecosystems. They write short answers to questions about the energy budget, food webs, trophic levels, and biogeochemical cycles. One way...
Worksheet
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Limiting Reagents and Percent Yield Problems

For Students 10th
Twelve questions about the various calculations of mass and yield are given here.  There is significant practice of molarity calculations and consideration of the reactant and product balance.
Lesson Plan
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Searching for Information

For Teachers 7th - 9th
In this computer worksheet, students use ViewPoint's forward and backward arrows, and the search tool to locate information given about minerals and vitamins. They load the Vitamins datafile and use the search tool to respond to five...
Worksheet
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Recycling

For Students 9th - 12th
In this recycling worksheet, high schoolers review what items can be recycled, what is made from recycled items, and how recycling conserves resources. This worksheet has 5 word scramble, 10 short answer, and 5 multiple choice questions.
Worksheet
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Biosphere

For Students 7th - 12th
There is so much to learn about the different cycles, processes, and parts of the biosphere. Using a pretest as a formative assessment to see what your budding ecologists already know is a great way to figure out which important areas...
Worksheet
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Biochemical Cycles

For Students 7th - 12th
When learning about several different processes at a time, it can be difficult to differentiate between them. In the resource found here, you can see what your kids know about some of Earth's systems including the carbon, hydrologic,...
Worksheet
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Chemistry Final Exam Worksheet

For Students 9th - 12th
In this chemistry worksheet, learners take a final exam that is concerning the identification of the chemical compounds. The answers are also included.
Worksheet
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Photosynthesis

For Students 9th - 10th
In this photosynthesis worksheet, students complete 20 various types of questions related to photosynthesis. First, they match each description in the first column with the correct vocabulary term in the second. Then, students explain...
Worksheet
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How Much are You Worth?

For Students 9th - 12th
In this body elements activity, students use a table given the percentage of each element that composes the body to find their worth. The value of each element is given and students calculate what their bodies would be worth if they...
Lesson Plan
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Vitamins and Minerals

For Teachers 9th - Higher Ed
In this vitamins and minerals worksheet, learners review how these are measured and determine what minerals the body needs. Students determine how different vitamins help the body to function properly. This worksheet has 22 short answer...
Worksheet
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Explorit's Chemistry Quiz

For Students 6th - 7th
In this chemistry worksheet, students complete a six question multiple choice quiz about chemistry. This is an on-line interactive worksheet.
Worksheet
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Atoms, Mass and The Mole

For Students 9th - 12th
For this atoms, mass and the mole worksheet, students are given 18 problems to solve for the number of atoms, the mass of the substance or the moles of the substance. Students show their work and include all the units of measurements.
Worksheet
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Percentage Composition

For Students 9th - 12th
In this chemical compounds worksheet, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.
Worksheet
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Percentage Composition and Empirical & Molecular Formula

For Students 10th - 12th
In this compounds worksheet, students determine the empirical and molecular formulas for given compounds. This worksheet has 10 problems to solve.
Worksheet
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Limiting Reagent Practice Problems

For Students 10th - Higher Ed
In this limiting reagents worksheet, students solve 10 problems. They calculate limiting reagents, they calculate percent yield of particular compounds and they determine how much of products can be produced based on the limiting reagents.
Worksheet
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Empirical and Molecular Formula Sheet

For Students 10th - Higher Ed
In this formulas worksheet, students solve eight problems and are required to write the empirical and molecular formulas given percentage of elements or quantities in mass.
Worksheet
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AP Chemistry-Equilibrium Worksheet

For Students 10th - 12th
In this equilibrium worksheet, students find moles of substances at equilibrium, the effects of changing pressure and temperature on the equilibrium of reactions, the concentration of substances in reactions and the equilibrium constants...
Worksheet
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Chemistry: Chemical Reaction

For Students 10th - 12th
In this chemical reactions worksheet, learners name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of solubility...
Worksheet
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Physical Science Quiz

For Students 8th - 11th
Test your class with a physical science quiz. Learners explain chemical processes, name compounds, write formulas for chemical compounds, balance equations, and more. 
Worksheet
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Working Out Empirical Formulae

For Students 9th - Higher Ed
In this chemical compounds learning exercise, students learn the steps for determining the empirical formula of a compound and then complete 3 problems.
Worksheet
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Periodic Table I Quiz

For Students 8th - 10th
In this periodic table I quiz, students select the best answer to the given questions. Students apply their knowledge of the periodic table and the arrangement to correctly answer the questions presented.