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Lesson Plan
Curated OER

Conservation of Mass

For Teachers 9th - 12th
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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Lesson Plan
3
3
American Chemical Society

Conservation of Mass

For Teachers 5th
It may take up less space, but the mass stays the same. Tackle a common misconception about conservation of mass using a hands-on lesson. Learners measure the mass of substances before and after melting, dissolving, and undergoing a...
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Lesson Plan
1
1
Science 4 Inquiry

Maintaining Mass

For Teachers 6th - 8th Standards
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...
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Activity
Perkins School for the Blind

Conservation of Mass

For Teachers 5th - 12th
How do you teach a student with visual impairments about the conservation of mass? You use tactile models that represent the theoretical concept. Baking soda and vinegar are used to add gas to a deflated balloon. Learners will feel the...
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Activity
Royal Society of Chemistry

Mass Changes in Chemical Reactions—Microscale Chemistry

For Teachers 6th - 10th Standards
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...
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Worksheet
Curated OER

Conservation of Mass

For Students 6th - 8th
In this conservation of mass worksheet, learners 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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Lesson Plan
Curated OER

Conservation of Mass

For Teachers 7th - 9th
In this conservation of mass worksheet, students design an investigation to demonstrate the Law of Conservation of Mass. Students describe their investigation, collect data, graph the data and write a conclusion about what they discovered.
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Lesson Plan
Curated OER

Chemical Formulas for Molecules

For Teachers 7th - 12th
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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Worksheet
Curated OER

Conservation of Mass-Balancing Equations Study Guide

For Students 7th - 9th
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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Activity
Integrated Physics and Chemistry

Law of Conservation of Matter

For Students 9th - 12th
Does mass change during a chemical reaction? Demonstrate the Law of Conservation of Matter while encouraging class members to be creative with a two-part lesson. First, learners use Alka-Seltzer® tablets and water to demonstrate the...
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Unit Plan
Columbus City Schools

What’s Up with Matter?

For Teachers 6th Standards
Take a "conservative" approach to planning your next unit on mass and matter! What better way to answer "But where did the gas go?" than with a lab designed to promote good report writing, research skills, and detailed observation. The...
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Interactive
PHET

Masses and Springs

For Students 6th - 12th Standards
Have you ever stretched out a Slinkie so much it wouldn't go back to its original shape? Slinkies, like all springs, follow Hooke's Law. A simulation uses springs and masses to demonstrate kinetic, potential, and thermal energy. It...
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Lesson Plan
Curated OER

Impulse, Momentum, and the Conservation of Momentum

For Teachers 9th - 12th
What happens when two worlds collide? In the first of several activities, future physicists experiment with colliding ball bearings or Newton's cradle. Another activity requires the use of an air track with cars to examine collision....
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Unit Plan
Columbus City Schools

Changes All Around Us

For Teachers 7th Standards
Whoa! What just happened? That's right, change is everywhere. But what exactly is changing? Middle school science sleuths get to the bottom of the changes matter can experience. Through simple demonstrations, engaging videos, and an...
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Activity
Texas State Energy Conservation Office

Investigation: Conservation of Energy

For Teachers 5th - 8th Standards
By rolling marbles down a six-foot length of track, physical scientists determine how much energy is lost to heat. It is recommended that you opt for the foam pipe insulation track because more friction slows the marble, allowing...
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Lesson Plan
Virginia Department of Education

The Law of Conservation of Matter

For Teachers 9th - 12th
The Law of Conservation of Matter can be complex for young scientists to fully grasp. Use this experiment to help simplify the process as pupils perform two experiments to determine mass: one that melts a substance and the other that...
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Lesson Plan
2
2
American Chemical Society

Forming a Precipitate

For Students 6th - 8th Standards
Can you mix two liquids to make a solid that is insoluble? Yes, you can, and pupils see this as the lesson uses more than one combination of liquids to form a solid. Through two teacher demonstrations and a hands-on activity, scholars...
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Worksheet
Curated OER

Early Atomic Theory Homework

For Students 9th - 12th
In this early atomic theory learning exercise, students answer 4 questions about the Law of Definite Proportions, the Law of Conservation of Mass and Dalton's Laws. Students are given 5 statements to determine if each true statement...
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Worksheet
Curated OER

The "Laws" and Principles of Chemical Reactions

For Students 10th - 12th
In this chemical reaction principles worksheet, students read about definite proportions and the law of conservation of mass. Students read about how to balance a chemical equation. Then students complete 20 fill in the blank, 2 short...
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Activity
Serendip

Where Does a Plant's Mass Come From?

For Teachers 9th - 12th Standards
Where does the mass for a growing tree come from? Scholars consider a few different hypotheses and guess which is correct. They then analyze data from different experiments to understand which concepts science supports.
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Activity
University of Saskatchewan

Using Conservation of Energy to Determine Average Impact Force

For Teachers 7th - 12th
Explore the center of gravity with your science class as they create a deadfall trap with common materials. They research the concepts of energy conservation and gravitational force before dividing into small groups to create a model of...
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Lesson Plan
Cornell University

Chemical Reactions

For Teachers 5th - 8th
Investigate the Law of Conservation of Mass through a lab exploration. Individuals combine materials to initiate chemical reactions. They monitor for signs of reactions and measure the masses before and after the reactions for comparison.
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Lesson Plan
Cornell University

Predicting Chemical Reactions

For Teachers 9th - 12th
Prove the Law of Conservation of Mass through a lab investigation. A well-designed instructional activity asks groups to combine materials and monitor indicators for chemical reactions. Measuring the mass of the reactants and products...
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Lesson Plan
Kenan Fellows

Balancing Equations Using Matrices

For Teachers 9th - 12th Standards
Matrices help solve systems of equations in chemistry, computer graphics, circuitry, probability, and more. The second lesson in a seven-part series focuses on using matrices to balance chemical equations. Pupils rely on the Law of...

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