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Physical and Chemical Reactions - Factors Which Affect Reaction Rate
A total of five experiments lead chemistry pros to understand the difference between physical and chemical change. They also experiment with exothermic reaction factors that affect rate of reaction. The procedures are not written in the...
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Nature and Fitness Trail
Students plan stations for a nature and fitness trail and construct an accompanying e-Book for extended descriptions at each station. Data on the human impact on the environment is gathered in this activity.
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Bacteria Lab I: Preparing Agar Plates and Culturing Bacteria
Bacteriologists prepare their own agar plates and culture bacteria on them. The procedures for both tasks are delineated, and questions are posed, but no materials list is printed. Also, the exact amounts of water and nutrient agar are...
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IB Chemistry 1-2 Fourth Quarter Practice Test
In this chemistry practice test worksheet, young scholars review their knowledge of oxidation numbers, chemical reactions, and solubility as they answer 15 multiple choice questions.
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Theoretical Yield and Percent Yield in Chemical Reaction
In this stoichiometry worksheet, students solve several problems using the stoichiometric method. Students find the percent, theoretical, and actual yield for all problems presented.
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Spontaneity, Disorder and Entropy
In this physical and chemical change worksheet, students calculate the entropy change involved in different chemical changes. This worksheet has 4 problems to solve.
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Acids and Bases
In this acids and bases worksheet, students review the characteristics of acids and bases, pK values, factors that change the rate of reactions, and catalysts. This worksheet has 17 multiple choice questions.
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Moles
In this moles worksheet, students 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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Acids and Bases
In this acids and bases worksheet, students compare the properties of acids and bases. Students determine the concentrations required to neutralize solutions. This worksheet has 1 word problem and 14 multiple choice questions.
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Stoichiometry
In this stoichiometry worksheet, learners practice calculating moles, molarity, and the concentration of a solution in molarity. This worksheet has 12 multiple choice questions and 3 problems to solve.
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Chemistry 115 Practice Exam 3
Radioactive decay, pH, properties of elements, organic compounds, and stoichiometry are all touched upon through this practice chemistry exam. It always helps learners to take a practice test in preparation for the actual exam. This...
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Back to the Past
Pupils label fossil imprints. In this Geology lesson, students view fossil imprints of several items. Pupils explain what a fossil is.
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Unit 1 Matter and Energy
Topping this worksheet is a comprehensive collection of notes about phase changes. The phase change graph is displayed, along with formulas for the gas laws, and information relating energy to change of phase. After reviewing these...
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Volumetric Analysis / Titration
Titration, and the lab skills that are needed to support it, is detailed here, with the reasoning behind standard solutions, concentration and volumetric analysis covered. Your young lab assistants will learn the skills of determining...
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Biosphere
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...
UT Southwestern
Osmosis Demonstration Lab
Even though they were written for upper-level high schoolers or college pupils, the labs herein are possible to use even in middle school. In the activity, kids observe osmosis in both potatoes and elodea plants, then record and graph...
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Transport Starts With?
A fill-in-the-blank worksheet regarding transport, this handout would make a great study guide or quick homework assignment to help learners ensure they know the key vocabulary for this topic. There is no answer key, but these are...
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A Little Chemistry
The molecular properties of water are the focus of this chemistry-based assignment. Multiple-choice, true-or-false, matching, and fill-in-the-chart style questions query assignees about the forces that hold the water molecule together,...
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Acid Rain
Students investigate the quality of water using a variety of methods. They use a pH probe to measure the pH and study the effect of dissolved CO2 in the water. Students also observe the effect of the pH upon the dissolving of H2SO4 in...
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Fish and Oxygen
Pupils explore what factors affect population dynamics, identify factors affecting fish populations, and use Stella to model how dissolved oxygen affects fish populations.
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Water Quality and Nitrates & Phosphates
Pupils examine the effects of nitrates and phosphates on the dissolved oxygen levels in different water sources. In this series of 3 lessons, they consider the reasons for nitrate and phosphate level increases and their effects on...
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When Things Heat Up
Ninth graders investigate relationship between the temperature and concentration of dissolved oxygen in water. They examine how pollution and other natural influences can cause the parameters to change. In groups, 9th graders collect...
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To Drink or not to Drink
Seventh graders discuss water quality, water availability and water resources and how water is used in the world around them. They view a video on water quality then test for pH, temperature and dissolved oxygen to indicate water quality.
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Ammonium Nitrate - Heat of Solution
Students quantify the relationship between temperature, energy and heat
and define an endothermic reaction. They measure the energy change caused by dissolving one mole of ammonium nitrate in water.