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Curated OER
Impulse, Momentum, and the Conservation of Momentum
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....
Curated OER
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...
Cornell University
Chemical Reactions
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...
Cornell University
Predicting Chemical Reactions
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...
Curated OER
The Conservation Of Mass (The Mass Of Gas)
Students gain an understanding of matter in all of its phases. For this science lesson plan, students further their knowledge of the laws of conservation of mass, the loss in mass can be accounted for, when the gas is allowed to escape...
Curated OER
No Creation-No Destruction--All in a Baggie
Students investigate the concepts of conservation of mass and simple chemical reactions. Students complete lab experiments and record all observations as well as conduct experiments on their own to determine which reactions created...
Curated OER
How much Carbon Dioxide is in My Seltzer Water?
Learners discover the law of conservation of mass though experimentation. In this chemistry lesson plan, students experiment with acid - base indicators to determine the presence of carbon dioxide. Learners complete the labs with...
LABScI
Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions...
Curated OER
Einstein's BIg Idea
Students discuss what the m in E=mc2 represent. They relate that mass in a chemical reaction is always conserved. Students convey that atoms rearrange themselves in chemical reactions to form different molecules and compounds.
Curated OER
Trophic Relationships, Cycling of Chemicals, Human Impact on Ecosystems and Conservation
Students explore how the energy flow through a system is related to trophic levels. They investigate how organisms affect the cycling of elements and water through the biosphere. Students participate in lab activities to observe ways...
Curated OER
Melting and Freezing of Water
Students examine the three states of matter. They identify the segments of heating and cooling curves. Students analyze data and create a graph to determine the freezing and melting temperature of water.
Curated OER
What Influences Reaction Rate?
Students study reaction rates, what determines how fast a reaction happens and how the chemical changes occur. In this reactions lesson students complete a lab where they use Alka-Seltzer to observe reaction rate and create a graph...
Curated OER
Mass of Water vs. Ice
Students examine how ice changes state and when its volume changes. In this mass lesson students complete a lab that shows them how waters volume can change.
Columbus City Schools
Magnificent Mendeleev: An Elemental Tale
Discover how the periodic table tells the story of its elements. Learners begin by studying the makeup of several mixtures. Their analysis leads to a discussion of elements and the periodic table. As they dig deeper, they understand the...
Curated OER
Activity Two Teacher Page: Explosions
Students identify variables that affect the system, and specify which variables are independent and which are dependent.
Curated OER
Sports Helmets and Impact Testing of Polymers
Students examine the importance of good quality safety gear. In this investigative lesson, students will tests various polymers, collect data, and analyze the data to determine which polymer is best for safety helmets. They will design a...
Curated OER
Potato Launcher Energy Lab
Young scholars investigate conservation laws using a potato launcher. In this physics instructional activity, students measure angles, time and distance of the potato. They discuss applications of experiments like this.
Curated OER
Balancing Bottles
Young scholars explore the Law of Conservation of Matter using effervescent tablets. In this mass and energy lesson, students investigate how mass is conserved in the reaction of effervescent tablets and water. They will discuss...
Curated OER
GUM: More, Less, or the Same?
Learners confirm the law of conservation of matter by weighing chewing gum before and after it is chewed.
Curated OER
Model Mania
Eighth graders study the conservation of matter. In this chemical reaction lesson students examine what happens during a chemical reaction and complete a lab activity.
Curated OER
Melting and Freezing of Water
High schoolers differentiate the three states of matter. In this chemistry lesson, students analyze graphs of heating and cooling curve of water. They complete a lab report and discuss results.
Curated OER
Determination of Phosphates
Students engage in a laboratory lesson in order to increase understanding of the impact of phosphates at the chemical and ecological levels. The lab exercise is completed with the goal of getting them to predict the outcomes and future...
Curated OER
THe Decomposition of Water
High schoolers collaborate in an experiment where they decompose water into simpler substances through the process of electrolysis. They collect, measure, and observe data and then place the data into a table. Accomodations for...
Beyond Benign
Green"er" Precipitation Reaction
All sodium carbonate may not have the same amount of carbonate, but it should have the same percent. Learners write and balance an equation to predict the chemical reaction between sodium carbonate and zinc acetate. Through the lab...