Science 4 Inquiry
Maintaining Mass
Can you disprove the law of conservation of mass? Pupils observe the teacher weigh each part of a reaction. Then, the teacher weighs the result of the reaction and everyone sees that the products do not equal the reactants. Then they...
Curated OER
The Influence of Initiator Concentration on the Molecular Weight of Polystyrene
This in-depth organic chemistry lab walks learners through an investigation of the effect of initiator concentration on the resulting molecular weight of polystyrene. It is important that you use this lesson with experienced chemistry...
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Masterpieces and the Mass-Produced
Students examine "masterpieces" and mass-produced objects as they discuss humankind's inventiveness and creativity. They also analyze the role of problem solving in the creation of masterpieces and mass-produced items.
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Conservation of Mass
Students conduct an experiment to compare the total mass of products to the mass of reactants. In this conservation of mass lesson plan, students devise an experiment to show that matter is neither created or destroyed in a chemical...
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Mass-Mass Relationship
Students investigate mass-mass relationships in the lab. In this mass-mass relationship lesson plan, students mix sodium carbonate with hydrochloric acid to produce sodium chloride, water and carbon dioxide. Students use the amount of...
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Relative Mass Formula, Atomic Formula, and Empirical Formula
After giving the definitions of the different compound terms and formulas, equations are provided to teach your chemists to calculate different values. Relative formula mass, atomic mass, and empirical mass are shown and explained with...
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Mass-Mass Relationships
Students investigate mass-mass relationships using potassium carbonate and hydrochloric acid. In this mass-mass relationship lesson plan, students measure a certain amount of potassium carbonate and determine how much hydrochloric acid...
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Petro Products
In this petroleum products learning exercise, students are given the components of crude oil and they graph the various products found in a 50 gallon barrel. Students complete an activity to determine if they have collected cards that...
Royal Society of Chemistry
Mass Changes in Chemical Reactions—Microscale Chemistry
What better way is there to introduce conservation of mass than a few simple experiments? Young chemists conduct two chemical reactions, take the masses of reactants and products, then compare their results to determine differences in...
Curated OER
Volume, Mass, and Weight
Study the difference between mass and weight. Your math group will compare the weight of an item to the amount of space that it uses. They'll then use conversion factors to find the difference between kilograms and pounds. Essential...
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Design in Production
Students are introduced to product design. In this social studies and technology lesson plan, students examine the historical role of mass production in the development of American business and industry and then apply their knowledge in...
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Conservation of Mass
In this conservation of mass worksheet, students experiment with vinegar, baking soda, a balloon and a flask. They compare the mass of the closed system of reactants before the experiment to the mass of the products after the experiment...
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Deep Impact Comet Encounter
Physics apprentices analyze the impact of NASA's Impactor as it collided with the comet Tempel 1 in July of 2005. They calculate the mass and speed of the comet, along with the distance it might drift off of its orbit over time. This...
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Relating Moles to Coefficients of a Chemical Equation
Students investigate the coefficients in a chemical equation and their relation to moles. In this moles and coefficients lesson plan, students perform a single replacement reaction of copper (II) sulfate and zinc and find the ratio of...
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How Dense is Salt Water?
Young schoolers explore the concept of linear regression. They determine the mass and density of salt water. Pupils add salt to water and record the density as salinity increases, and perform a linear regression on the data to model the...
Curated OER
Fish and Clips
Youngsters test magnetic strength by measuring the mass of paper clips that they "hook" with a magnet. Your first and second graders should love the hands-on activities associated with this plan. The reproducible materials are quite good...
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Chemical Formulas for Molecules
Newcomers to chemistry compare hydrogen peroxide to water, realizing that the difference of one oxygen atom significantly affects the chemical properties. Other pairs of compounds and their formulas are also examined. A few chemical...
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Conservation of Mass-Balancing Equations Study Guide
In this conservation of mass worksheet, students balance 4 equations and identify the products, the reactants and the kind of reaction. Students then answer 5 questions about the conservation of mass.
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Mass Production Using an Assembly Line
Fifth graders examine the industrial revolution. In this industrialization lesson, 5th graders explore the concept of mass production via the assembly line. They then create an assembly line which demonstrates its costs and benefits...
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Formula Mass
In this formula mass worksheet, learners read about molecular substances and their formula masses. They find the formula masses for six compounds using the atomic masses of its elements.
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CME Kinetic Energy and Mass
In this kinetic energy and mass instructional activity, students read about coronal mass ejections detected by the SOHO satellite. Students complete a data table that shows the relationship between kinetic energy, speed and mass. They...
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2007 U.S. National Chemistry Olympiad Local Section Exam
Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...
Curated OER
Matter and Energy
Does the change in energy of matter lead to a change in mass? Upcoming chemists compare the mass of equal-volume, but different-temperature liquids and materials both before and after a chemical reaction has occurred. In another...
Perkins School for the Blind
Volume, Mass, and Density Boxes
Mass and density are difficult topics for kids to understand, and even more difficult when you have visual impairments or blindness. Learners will make boxes and fill them with cotton, sand, or crushed paper. They will feel the density...