Pingry School
Qualitative Analysis of Eleven Household Chemicals
Chemical and physical properties give compounds an identity. Learners use the identity of a compound to predict what it is. By performing different tests like solubility, flame, heat, and reactions, individuals attempt to identify an...
Curated OER
Common Ions and Formulae of Ionic Compounds
This is not a worksheet per se, but rather a reference sheet for your chemistry class. It displays a list of cations and anions along with their chemical symbols and net charges. Following the table is a pretty thorough explanation of...
Pingry School
Solubility Product of an Ionic Compound
How do scientists determine when a solution is fully saturated? Scholars address the topic as they observe patterns of precipitation in various concentrations of ions. Using a well plate, pipette, and common chemicals, they collect data...
NOAA
Please Pass the Salt
Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to observe how...
National Institute of Open Schooling
Hydrogen and s-Block Elements
Lesson 19 in the series of 36 analyzes the element hydrogen and the s-block elements. Through readings, answering questions, and discussion, learners write about and explain their occurrence, physical and chemical properties, and uses.
Curated OER
Fifth Grade Science
In this science worksheet, 5th graders answer multiple choice questions about the ocean, animals, rocks, and more. Students complete 25 questions.
Curated OER
Conductivity - Pass the Buoy and Pepper, Please
Buoys around our coastlines are equipped with sensory devices which monitor temperature, salinity, and water pressure. Emerging earth scientists examine some of this data and relate salinity to the electrical conductivity of the surface...
Curated OER
Law of Conservation of Mass Worksheet
For this law of conservation of mass worksheet, students solve 10 reaction problems by determining the mass of a reactant or product.
Curated OER
The Three E's - Exciting Energetic Electrons
Students perform flame tests on salts and record the electron configurations for various cations. They analyze and record the results using spectroscopes.
Curated OER
Other Aspects of Aqueous Equilibria
In this aqueous equilbria worksheet, students write the solubility product expressions for the given salts. Students determine what affects the solubility of salts. Students calculate the pH of a buffer solution. This worksheet has 14...
Curated OER
Additional Stoichiometry Problems
For this stoichiometry worksheet, students calculate the mass or compounds or volume or gases produced from given chemical reactions. This worksheet has 5 problems to solve.
Curated OER
Physical and Chemical Changes and Balancing Chemical Equations
In this changes worksheet, pupils compare and contrast the characteristics of physical and chemical changes. Students practice balancing equations. This worksheet has 5 fill in the blank and 7 short answer questions.
Curated OER
Stoichiometry Problems - Limiting Reagents
In this stoichiometry worksheet, students determine the limiting reagents and the mass of compound precipitated in given chemical reactions. This worksheet has 4 problems to solve.
Curated OER
Writing Formulas for Ionic Compounds
In this writing formulas worksheet, students write the formulas for 15 ionic compounds and name their anions and cations. Students balance the charges of the ions to determine the formula.
Curated OER
Heat Loss and Gain in Physical Changes and Chemical Reactions
Pupils measure the heat of physical and chemical changes in reactions. In this chemistry lesson students determine at what extent changes emit or absorb heat.
Curated OER
Rennet Cultured Cheese
Fifth graders make cheese using two different methods. In this cheese making lesson, 5th graders make rennet cultured cheese following the step by step directions. They also make cheese using a genetically engineered bacteria that makes...
Curated OER
Science: Adding Solutes to Solvents
Students design experiments examining the effects of various solutes on water. They record results on graphs explaining any unexpected consequences of their experiments and determine if their hypotheses were correct.
Curated OER
PHENOTYPIC AND GENOTYPIC CHANGES IN BACTERIA
Students use a rapid method to render the bacterium Escherichia coli "competent" in order to uptake plasmid DNA. They also have growth on the plain LB plates by the untransformed cells (which serve as controls). Students perform a cell...
Curated OER
Phenotypic and Genotypic Changes in Bacteria
Students investigate a rapid method to render the bacterium Escherichia coli "competent" to uptake plasmid DNA. They demonstrate the phenotypic changes associated with transformation. They perform a cell resuspension from the...
Curated OER
It's in the Bag!
Eighth graders measure temperature changes and make drawings of the interactions between matter and energy. By measuring the temperature students can conclude if there are changes in levels of energy.
.
Curated OER
Stoichiometry Problems - Limiting Reagents
In this stoichiometry worksheet, students determine the limiting reagent and mass of precipitate produced in given chemical reactions. This worksheet has 5 problems to solve.
Curated OER
AP Biology Lesson Outline
Ninth graders research the different field of bioengineering. For this biology lesson, 9th graders differentiate meiosis and mitosis. They discuss the pros and cons of using radiation in medical diagnostics.
Curated OER
Molarity of Solutions
In this molarity worksheet, students determine the mass needed to make the given solutions and calculate molarity and volume of solutions. This worksheet has 14 problems to solve.
Curated OER
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.