Science Struck
Science Struck: Law of Conservation of Mass Explained With Examples
Explains the Law of Conservation of Mass, or Law of Conservation of Matter, and gives two examples for it.
NASA
Glenn Research Center: Conservation of Energy
From the Glenn Research Center at NASA, read about the law of conservation of energy. Included are formulas and many links to key terms.
American Association for the Advancement of Science
Aaas: Project 2061: Substances, Chemical Reactions, and Conservation of Matter
[Free Registration/Login Required] Create a science test that checks for student understanding in science, for common misconceptions, as well as for correct ideas. This is a list of key ideas related to Substances, Chemical Reactions,...
Libre Text
Libre Texts: Physics: Conservation of Mass and Energy
A collective which looks at mass and energy. Identify the forms of measurement and how to convert them as well as scientific notation. Practice application with homework problems.
CPALMS
Florida State University Cpalms: Florida Students: Conservation of Mass Tutorial
Learn how mass is conserved in physical and chemical changes.
Khan Academy
Khan Academy: Dalton's Atomic Theory
Article explores the key points of Dalton's atomic theory and the laws of conservation of mass and constant composition. Which points do we still use today?
OpenStax
Open Stax: Collisions of Point Masses in Two Dimensions
From a chapter on Linear Momentum and Collisions in a Physics textbook. This section of the chapter discusses collisions in two dimensions, what point masses are, how to calculate the conservation of momentum, what happens when two...
BBC
Bbc: Gcse Bitesize: Calculations for All Students
Law of conservation of mass: No atoms are created or destroyed in a chemical reaction. They just join together in a different way than they were before the reaction, and form products. This means that the total mass of the products in a...
Utah Education Network
Uen: Physical Changes
Second graders explore the concept of law of conservation of mass.
CK-12 Foundation
Ck 12: Chemical Equations
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will describe chemical reactions using word equations and know the correct symbols to use in order to write skeleton...
Texas Education Agency
Texas Gateway: Matter and Energy: Chemical Equations
Explore balanced chemical equations in this tutorial. Tutorial includes videos, interactive activities, and practice to help students understand balanced chemical equations and the Law of Conservation of Mass.
CK-12 Foundation
Ck 12: Atomic Theory
[Free Registration/Login may be required to access all resource tools.] In this online tutorial students will explain the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. They will also...
Texas Education Agency
Texas Gateway: Collisions of Point Masses in Two Dimensions
By the end of this section, you will be able to discuss two-dimensional collisions as an extension of one-dimensional analysis, define point masses, derive an expression for conservation of momentum along the x-axis and y-axis, describe...
Science Buddies
Science Buddies: Piaget's Theory: One Cup of Water Is Less Than One Cup of Water
In this human behavior science fair project, the student will learn about Piaget's developmental stages and the Theory of Conservation. The student will investigate the age at which children understand the equality of numbers and mass....
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Masses & Springs
An interactive simulation that teaches about springs, Hooke's Law, and conservation of energy observing changes in kinetic, potential, and thermal energy by adjusting the stiffness and damping of springs holding various masses. This...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Masses & Springs
Hang various mass weights on spring scales while you adjust the spring stiffness and damping in this online activity. Slow down the action, take it to another planet, or watch the amount of potential, thermal, and kinetic energy.
Open Curriculum
Open Curriculum: Conservation of Energy
This Kahn Academy tutorial helps students understand the principles of conservation of energy and mass. [10 min, 6 sec]
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Balancing Chemical Equations
An interactive simulation with weights and scales that teaches about balancing chemical equations and conservation of mass. This simulation can either be downloaded or played online and includes handouts, lesson plans, and additional...
Sophia Learning
Sophia: Atomic Mass: Lesson 4
This lesson explains what is represented by the atomic mass, and how it varies from one element to the next. Module includes a slideshow and a quiz.
Physics Aviary
Physics Aviary: Practice Problems: Momentum Conservation Level 1
Students must determine the unknown mass in a problem involving momentum conservation. Both objects begin at rest and are propelled apart by a tap activated spring.
Physics Aviary
Physics Aviary: Practice Problems: Momentum Conservation Level 2
Students must determine the unknown mass in a problem involving momentum conservation. One object begins at rest and the two objects stick together during the collision.
The Wonder of Science
The Wonder of Science: 5 Ps1 2: Conservation of Matter
On this site, find a variety of materials to help students understand the conservation of matter. Create lessons that allow students to measure and graph quantities that could show even if matter is heated, cooled or combined with other...
The Wonder of Science
The Wonder of Science: Ms Ps1 5: Conservation of Atoms in Reactions
Work samples, phenomena, assessment templates, and videos that directly address standard MS-PS1-5: conservation of atoms in reactions.
TeachEngineering
Teach Engineering: In and Out Reactor
Students learn about material balances, a fundamental concept of chemical engineering. They use stoichiometry to predict the mass of carbon dioxide that escapes after reacting measured quantities of sodium bicarbonate with dilute acetic...
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