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Ancient Atomic Theories
Studdnts research ancient texts and compare ancient Greek atomic theories, as used in the production of silver, to modern theories.
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Carbon Creating Activity
In this carbon worksheet, students follow directions and use marshmallows and toothpicks to made carbon dioxide and glucose molecules. Students do this to see how carbon changes as a result of photosynthesis.
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Chemical Reactions and Burning Fossil Fuels
For this chemistry worksheet, students select answers to 24 multiple choice questions using the drop down box. They identify the different atoms involved in the chemical reaction.
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Chemistry of Carbon - Building Blocks of Life
A great review of the structure and function of carbon-based molecules important to life, especially with relevance to humans. The chemistry behind the combination of polymers and the breakdown of bonds is covered. Valuable content...
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Exam Review: Chemistry Calculations
In this chemistry calculations review worksheet, students solve 33 review problems about titrations, precipitates, pressure and volume of gases, combustion reactions, heat of combustion, molar concentrations and molecular formulas.
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Polymers
Students explore online tutorial on polymers. In this chemistry lesson, they create two polymers in the lab and compare their properties. They write a sales letter about their new and improved polymer product.
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A Chemist in My Class?
First graders in kindergarten science class discuss matter. They make predictions and then identify mystery items in brown paper bags as either solid, liquid, or gas by using their senses. They discuss that a chemist is a scientist that...
Normal Community High School
Classification of Matter
Steel is an example of homogeneous mixture, also called an alloy, which is made of iron and carbon. The presentation introduces learners to elements, compounds, and mixtures. They explore their similarities and differences, and then take...
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The Nature of Salt
Young scholars record information from the periodic table for sodium and chloride. They determine whether salts are molecular or ionic compounds, along with sodium chloride's molecular weight, and relative weights
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Bond Type
At the top of the page are a reading passage and colorful diagram that depicts the tug-of-war that occurs between bonding molecules due to electronegativity. High school chemists fill in a chart with electronegativity values, the...
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Classroom Aquaponics: Exploring Nitrogen Cycling in a Closed System
Students investigate nutrient cycling in a simplified desktop ecosystem involving aquarium and hydro-ponically grown plants. They set up an aquarium with 10 gallons of water at least a week before the lab is planned and place...
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Properties of Covalent Compounds
In this compounds activity, students compare the differences between and ionic compound and a covalent compound. Students explain bond dissociation energy. This activity has 5 short answer questions.
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Resources - A Reading Guide
In this resources instructional activity, students compare and contrast physical and chemical properties and changes. Students review the periodic table, pattern of atomic numbers and chemical reactivity. This instructional activity has...
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Carbon: Structure Matters
Young scholars read the Who We Are Section on Calfee Designs Webpage and discuss carbon usage. They work in pairs to look up the minerals diamond and graphite then create a chart on the properties of each mineral then compare how they...
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Synthesizing Pigment and Dyeing Cloth
Students create a synthetic dye and oxidize the dye and record the effects.
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Balancing Chemical Reactions
In this balancing chemical reactions worksheet, learners answer 12 questions about balancing reactions. They find the coefficients to balance atoms in equations, they balance reactions, they find the molecular mass of molecules and they...
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Chemistry 1A Review
In this Chemistry 1A worksheet, students review, molecular weight, solubility, endothermic reactions, and number of protons, neutrons, and electrons for elements. Students review Lewis Structures and how to predict the amount of product...
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What is a Chemical Reaction?-Evidence of Change
In this chemical reactions worksheet, students experiment with hydrochloric acid and copper (I) chloride to identify the types of reactions they undergo with various other substances. They also observe the law of conservation of mass and...
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The Energy Debate - Stoichiometry
Students determine crude oil can be separated into useful fractions by a process of fractional distillation. They write a balanced equation for the reaction between a hydrocarbon and oxygen.
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The Mole
This compact collection of slides explains the history and use of the mole unit. Relative atomic mass, as John Dalton understood it, is explained. Avogadro's number is also introduced. The mole, or the unit for the amount of a substance,...
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Covalent Bonding - Electron Dot Structures
A short paragraph helps explain how covalent bonds are formed, and then your class will complete the Electron/Dot and Structural diagrams for the molecules given. The valence diagrams will reinforce understanding. This activity...
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Physical vs. Chemical Changes
For this chemical and physical change worksheet, young scholars are given details about chemical and physical changes. They are given 2 examples using water and salt and they identify 15 statements as chemical or physical changes....
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Working with Moles
In this moles worksheet, high schoolers read about mass, formula mass and moles. They calculate the masses of given numbers of moles of compounds and they calculate the number of moles of given masses of compounds.
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Mixtures of Matter
Students experiment with solids and liquids. In this mixtures of matter lesson, students combine matter to form solutions. Students hypothesize, test, and analyze the data to draw conclusions. The lesson can be extended by having...