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How Does Your (Coral) Garden Grow?
Analyze and graph oxygen isotope ratios in coral samples in relation to the distance from the outer skeleton edge. Compare the data to the mean monthly water temperatures. Uncover whether or not there is any correlation. In addition to...
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Limiting Reactant
Chemistry classes learn the importance of a limiting reactant by first considering a cake recipe. Given the recipe and the total amount available for each ingredient, they must calculate how many cakes can be made. Finally, they apply...
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Sometimes, solid + liquid = gas
Third graders experiment with common household liquids and solids. For this chemical reaction lesson, 3rd graders discuss phase changes and experiment to find other ways to create gases. They use water, vinegar, lemon juice, flour,...
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Holy Starbucks Batman
Students investigate caffeine as a potential new pollutant in a northwest river system. Effects of caffeine on invertebrates and salmon fry will be explored through field work and lab work.
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Strange Bugs
As individuals or in small groups, marine biologists research and discuss archaea and their unusual behavior as compared to bacteria. Teach them about the chemical makeup of the cell membrane of these strange organisms. This complex...
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Alcohols, Phenols, and Ethers
Twelve pages of text tells viewers about the physical properties and naming procedures for alcohols and ethers. A page is also dedicated to briefly describing phenols. This straightforward chemistry presentation comes to you as a PDF...
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Diffusion through Membranes
Students identify diffusion and its processes through experimentation and calculations. They also use a CBL and conductivity probe to measure the conductivity of various solutions and study the effect of concentration gradients on the...
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Space Shuttle
One slide details the features of Space Shuttle Discovery in graphic form. Another shows a faulty hydrogen fuel sensor. The final slide is a picture of the explosion of Space Shuttle Challenger and the ill-fated crew. If you wanted to...
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ALARA
This activity sheet posts a chart of the common radiation sources in our everyday lives. Chemistry scholars use it to analyze their own radiation exposure using rem (Roentgen equivalent for man) units. This simple assignment increases...
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Moles
In this moles worksheet, learners review solubility, moles of solute, molar mass, and colligative properties. This worksheet has 10multiple choice questions and 11 problems to solve.
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Chemosynthesis for the Classroom
Explorers set up Windogradsky columns with local mud so that they can culture microorganisms. After three and six weeks they make observations of the mud and the organisms growing in it. In this way they observe succession and relate...
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Manometer
There are several instruments that can be used to measure the pressure of a gas. Here, junior chemists venture into the workings of a manometer. Barometers the Boltzmann Distribution are also detailed. A highlight of this presentation is...
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11 - The Heat Is On
Students observe physical change of melting by observing substance in original state, melting substance, allowing substance to return to original temperature, determining if substance retained its original properties, and recording results.
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Quantitative Relationships in Chemical Equations
In this chemical equations worksheet, students balance the equations and then determine the number of moles of product or reactant. This worksheet has 7 problems to solve.
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Stream Flow in Blacks Creek
Students explore what factors affect the stream flow in a local body of water. They collect data to measure stream flow and discharge and construct a hypothesis concerning the factors affecting stream flow.
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Chemical Change vs. Physical Change
In this physical and chemical change worksheet, students are given a description of these changes. They are given ten changes that the students identify as chemical or physical changes based on their reading.
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Calculating Joules
In this calculating joules instructional activity, students read about the relationship between mass, temperature change, specific heat and energy. They find the number of joules needed to heat water in five different problems using the...
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Vapor Pressure
In this vapor pressure instructional activity, students use a given graph of the vapor pressure of four liquids to answer eleven questions. They compare and find boiling points and vapor pressures of propanone, ethanol, water, and...
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Comparing Solids, Liquids, and Gases
In this solids, liquids and gases worksheet, students observe a teacher demonstration about gases and they experiment with liquids to show diffusion, shape and volume. They answer nine questions about the experiments related to solids,...
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Solubility Curves
In this solubility curve worksheet, students are given a solubility curve for a variety of compounds and they answer 17 questions about the solubility of the compounds shown.
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Finding Concentration
In this determining concentration worksheet, students are given the equations to find the concentration of a solution in grams per milliliter, to determine the concentration in parts per million, to determine percent mass and percent...
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Interpreting Chemical Formulas
In this chemical formulas worksheet, students determine the number and type of each atom and the total number of atoms for the given formulas. Students complete 10 problems.
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ENGINEERING TOOTHPASTE
Young scholars make a class list of household products and discuss how many of these products are made through chemistry. They guess the ingredients in the products and imagine how toothpaste might be made. They make toothpaste.
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Balancing Equations
For this balancing equations worksheet, students balance ten equations by placing the proper coefficients in front of reactants and products to balance the number of atoms.