Chemistry is the study of matter and the ways in which different forms of matter combine with each other
Chemistry is the study of matter. Our understanding of chemical processes thus depends on our ability to acquire accurate information about matter. Often, this information is quantitative, in the form of measurements. In this lab, you will be introduced to some common measuring devices, and learn how to use them to obtain correct measurements, each with correct precision. A metric ruler will be used to measure length in centimeters (cm).
The ACS (American Chemical Society) citation style guide uses color-coded citation examples to assist chemistry students in converting MLA and APA citations to the ACS citation style. The MLA and APA citation styles are widely used in college courses, and many students are familiar with those styles. This guide makes citation in chemistry courses simple by giving examples of frequently referenced resources.
A basic concept map on topic alkene i.e. propene with its reactions and how it is prepared.
Paul Anderson's video playlist of videos that can be used in a AP Chemistry Video Essentials class
Learn more about ATP: how it stores energy, and how that energy is released when it's converted to ADP and phosphate. Created by Sal Khan.
Determine the enthalpy of the ATP reaction.
This video segment adapted from First Light explains why the highest peak in the Pacific, Mauna Kea, is an ideal site for astronomical observations. Featured are new telescope technologies that allow astronomers to explore the universe in more depth.
Classification of Analytical Methods
This segment from Swift: Eyes through Time traces the history military officers and engineers discovering a strange phenomenon in the sky that astronomers now know are gamma-ray bursts.
In this lab exercise, students practice correctly using measurement tools, recording data, calculating density, using significant figures, and exploring the concepts of accuracy and precision.
This unit of investigation is introduced using the anchoring phenomenon of a rocket launch. Students investigate the concepts of what is fuel, why some materials react and others do not, the role energy plays in the rearrangement of atoms, and where does the energy to do this come from and finally what makes the rocket lift off if fire itself is not causing this.
In this activity, students explore the effect of chemical erosion on statues and monuments. They use chalk to see what happens when limestone is placed in liquids with different pH values. They also learn several things that engineers are doing to reduce the effects of acid rain.
How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH. Can a weak acid solution have the same pH as a strong acid solution?
This activity is acid-base titration lab where students determine the percent of calcium carbonate in an eggshell.
In this activity, students use the virtual lab to create 500mL of 3M HCl solution from a concentrated stock solution of 11.6M HCl. They must first calculate the correct volumes of 11.6M HCl solution and water to mix together to create the final solution. Next, they prepare the solution using the appropriate glassware, and then can check their answer using the concentration viewer in the solution info panel.
This module provides an intrioduction to acid and base chemistry. The Arrhenius and Bronsted-Lowry concepts of acids and bases are discussed as well as the pH scale and neutralization reactions.
In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.
This is a pdf of a presentation. It can be used to expand upon or introduce the topic of Acids and Bases within chemistry. It primarily goes over the basics but could be used at any point.
This is a lab followed by questions to help students understand how acids and bases interact. It also helps students understand how pH works.
In this video segment adapted from ZOOM, two cast members demonstrate what happens when vinegar is added to baking soda inside a container. The resulting chemical reaction produces enough carbon dioxide to launch their paper rocket skyward.
Recommended for: Grades K-5
This is a review of information that should have been learned regarding acids, bases, and pH. It is a series of questions followed by answers and explanations.
A car propelled by the reaction between lemon juice and baking soda has more in common with rockets and jet aircraft than one might think. In this video segment adapted from ZOOM, two cast members demonstrate the power of rocket-propelled vehicles and how to exploit the force produced by the carbon dioxide gas. Grades 3-8.
It would seem that bottles of lemon juice and rockets have only their basic shape in common. However, as two cast members from ZOOM demonstrate in this adapted video segment, when baking soda is added to the mix, a plastic bottle can act very much like a real rocket. Grades 3-8.
In this section we will be talking about the basics of acids and bases and how acid-base chemistry is related to chemical equilibrium. We will cover acid and base definitions, pH, acid-base equilibria, acid-base properties of salts, and the pH of salt solutions.
Students experiment with a new materialâaerogel. Aerogel is a synthetic (human-made) porous ultra-light (low-density) material, in which the liquid component of a gel is replaced with a gas. In this activity, student pairs use aerogel to simulate the environmental engineering application of cleaning up oil spills. In a simple and fun way, this activity incorporates density calculations, the material effects of surface area, and hydrophobic and hydrophilic properties.
he cost of healthcare is one of the largest personal expenditures worldwide, with residents of the United States spending upwards of $10,000 each year. A significant portion of healthcare costs in the United States and many other countries comes from paying for prescription medications. This unit is designed to give 9-12th grade chemistry, pharmacology, or biology students an introduction to prescription drug costs and what scientific measures can be taken to lower costs. Topics necessary for this unit include the relationship between structure and function, pH, activation energy, the relationship between temperature and reaction rate, catalysts, inhibitors, among additional concepts. This unit functions as an end-of-year project incorporating all of the topics listed above and challenges students to conduct research, design their own strategy to lower drug costs, and prove their viability and cost-saving potential through calculation. Individually or in pairs students must pick a strategy or technology, spend a day or more researching it, two days writing a research paper on it, one day preparing a class presentation, and one day for presentations. Student’s ability to effectively prove the viability of their strategies/technologies as well as estimate the cost savings to consumers will be weighted heavily.
All biological cells require the transport of materials across the plasma membrane into and out of the cell. By infusing cubes of agar with a pH indicator, and then soaking the treated cubes in vinegar, you can model how diffusion occurs in cells. Then, by observing cubes of different sizes, you can discover why larger cells might need extra help to transport materials.
In this module, students prepare and run an agarose gel that they use to separate DNA molecules of various sizes. Students stain the gels with ethidium bromide to visualize the positions of DNA molecules. Students estimate the sizes of separated DNA molecules by their migration distances relative to those of molecular weight standards. This module is part of a semester-long introductory lab class, Investigations in Molecular Cell Biology, at Boston College.
In this video from Nature, geological detectives use ancient diamonds to learn more about Earth's inner layers.
This is a series of activities demonstrating that air has mass, takes up space, and can exert a force on objects enough to lift them.
This is a series of investigations about air and its properties. How air exists all around us, and things it is capable of doing.
The image is created from canva app and describes what is air pollution, causes, types, effects and control measures of air pollution.
![Air Pollution [Liberal Arts: Math and Science/Natural Science]](https://oercommons.s3.amazonaws.com/media/thumbnails/8c/11/8c117a37673301dc22834ee6bae5b083.png)
This assignment was designed for students in the pathways introductory chemistry class and the first year seminar and aligns with the Inquiry and Problem Solving core competency. In this context, there is a focus on framing the issues (identifies and/or addresses questions and problems), evidence gathering (assembles, reviews and synthesizes evidence from several diverse sources), evidence (analyze the data to address the questions posed) and conclusions (critical thinking, reflect on the outcomes, draw conclusions and generate new knowledge). There is also a Global Learning component based on comparing data collected locally with corresponding data from other locations or countries. The assignment includes the written communication ability with a focus on "Content Development and Organization," as well as the clarity of the communication and its purpose. The overall aim of this assignment is to enhance students' conceptual learning and understanding of key issues related to society as well as their course. This assignment was developed as part of a LaGuardia Global Learning mini-grant and CUNY Experiential Learning and Research in the Classroom mini-grants.
The assignment will be scaffolded over about 3 weeks and is worth about 10% of the final grade.
To further increase the success of this assignment, instructors might want to consider the following: Use class discussions to focus on the relevance and importance of conceptual learning. In order to improve the data analysis aspect, incorporating class demonstrations of how to conduct the analysis and guide discussions about what the data means. Giving students more detailed rubrics with formal expectations of the requirements of the assignments, particularly in the written format Find ways to increase student participation in class discussions.
When this assignment has been utilized in previous semesters, students clearly displayed the capability to relate the co-curricular experiences in the data collection and its analysis to concepts and ideas covered during class. Evidence for this came from very dynamic and interactive class discussions based on air pollution as well as from the output of the written assignment, in which students were able to relate the nature, sources and chemical properties of the pollutants to their impact on the environment, health and society in general.
LaGuardia's Core Competencies and Communication Abilities
List the Program Goal(s) that this assignment targets
Global Learning based on comparing pollutant levels around the LaGuardia campus with those in other locations or countries. It is also an IPS assignment, incorporating scientific literacy and thinking, as students need to analyze the data, interpret it and reflect on the outcomes.
List the Student Learning Objective(s) that this assignment targets
Identify and apply fundamental chemical concepts and methods. Gather, analyze, and interpret data.
List the Course Objectives(s) that this assignment targets
Explore the complex connections between chemistry and society. Apply chemical principles to real world issues, including ethical aspects. Gather, analyze, and interpret data.
Write a short description of the pedagogy involved in executing this assignment
Students collect and analyze the data, interpret the results in terms of pollution levels, safety and ethics and compare with EPA standard levels and with levels in other countries.
Outside the classroom events will be organized for data collection. There will be class and group-based discussions focused on the data, its analysis and the connections to society.
In this video segment adapted from ZOOM, cast members make their own hovercraft and demonstrate how the air leaking out of a balloon can make a plastic plate hover above a table.
This is an inquiry activity that relies of pervious understanding of balancing and weighing to introduce a properties of air.
This animated video consist of information about air pollution , its sources, its impact and control measures
Determine the concentration of an alcohol solution from its density.
Alcohol or ethanol fermentation, including yeast and its role in bread and wine production.
Students are introduced to biofuels, biological engineers, algae and how they grow (photosynthesis), and what parts of algae can be used for biofuel (biomass from oils, starches, cell wall sugars). Through this lesson, plants—and specifically algae—are presented as an energy solution. Students learn that breaking apart algal cell walls enables access to oil, starch, and cell wall sugars for biofuel production. Students compare/contrast biofuels and fossil fuels. They learn about the field of biological engineering, including what biological engineers do. A 20-slide PowerPoint® presentation is provided that supports students taking notes in the Cornell format. Short pre- and post-quizzes are provided. This lesson prepares students to conduct the associated activity in which they make and then eat edible algal cell models.