This lesson introduces J. J. Thomson's discovery of the electron and E. Rutherford's planetary model of atomic structure. This is the first in a series covering modern atomic theory.
The difference between atomic weight and atomic mass in chemistry, and how it compares to the physics definitions of weight and mass.
CHEMISTRY 2ND EDITION
Long Description:
Chemistry: Atoms First 2e is a peer-reviewed, openly licensed introductory textbook produced through a collaborative publishing partnership between OpenStax and the University of Connecticut and UConn Undergraduate Student Government Association.This text is an atoms-first adaptation of OpenStax Chemistry 2e. The intention of “atoms-first” involves a few basic principles: first, it introduces atomic and molecular structure much earlier than the traditional approach, and it threads these themes through subsequent chapters. This approach may be chosen as a way to delay the introduction of material such as stoichiometry that students traditionally find abstract and difficult, thereby allowing students time to acclimate their study skills to chemistry. Additionally, it gives students a basis for understanding the application of quantitative principles to the chemistry that underlies the entire course. It also aims to center the study of chemistry on the atomic foundation that many will expand upon in a later course covering organic chemistry, easing that transition when the time arrives.
The second edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Substantial improvements have been made in the figures, illustrations, and example exercises that support the text narrative. The first edition of Chemistry: Atoms First by OpenStax is available in web view here.
Word Count: 374196
ISBN: 978-1-998755-61-5
(Note: This resource's metadata has been created automatically by reformatting and/or combining the information that the author initially provided as part of a bulk import process.)
This lesson combines a powerpoint lecture and a reading activity to teach students about the theory and structure of atoms.
This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid?
In this activity, students will explore how the Law of Conservation of Energy (the First Law of Thermodynamics) applies to atoms, as well as the implications of heating or cooling a system. This activity focuses on potential energy and kinetic energy as well as energy conservation. The goal is to apply what is learned to both our human scale world and the world of atoms and molecules.
Both of these lessons are classroom activities that require students to build models that display understanding of atoms and molecules. One lesson is structured while the other is guided.
Chemistry is the study of matter, and all matter is made up of atoms. We will learn about elements, atomic number and mass, isotopes, moles (chemistry moles, not the animal), and compounds.
Oyster-Acidifying oceans dramatically stunt the growth of already threatened shellfish. This audio slideshow and video features scientists from Bodega Marine Lab and research on shellfish in Tomales Bay, CA.
This is a lesson which gives students the opportunity to imagine they are scientists, provides them with a basic understanding of aurora and helps them to use creative methods in their observations. First, students will study the scientific aspect of the aurora. They will also look at images of the aurora (both pictures and illustrations) and describe what they think of when they see them. These descriptions can be stored in the student portfolios as they will be useful in future lessons. Includes teacher notes and instructions, student workshops and an online, animated story, and related teacher resources on aurora. This is lesson three of a collection of five activities that can be used individually or as a sequence; concludes with a KWL (Know/Want-to-know/Learned) assessment activity.
In this lesson, students will demonstrate their understanding of the aurora by writing their own poems. Teachers can decide which form(s) of poetry to use from their worksheets or allow students to create their own. Examples of styles include: Acrostic, List, Haiku, Like and As, and May and Could. To help students get inspired, the class will read a poem on the aurora, and they can also look through their portfolios to help form ideas. Includes teacher notes and instructions, student workshops and an online, animated story, and related teacher resources on aurora. This is lesson five of a collection of five activities that can be used individually or as a sequence; concludes with a KWL (Know/Want-to-know/Learned) assessment activity.
Overview:
On this webpage you will find OER Chemistry textbooks along with supplemental materials and a few lecture videos.
The purpose of these discipline-specific pages is to display content that might be of interest to faculty who are considering adopting open educational resources for use in their classes. This list of content is by no means exhaustive. The nature of open educational resources is very collaborative and it is in that spirit that we encourage any comments about the content featured on this page or recommendations of content that are not already listed here.
This is an infographic about Bhopal Gas Tragedy.
Chemistry Scholarship opening for applications until Oct 31st, 2024.
Students are introduced to the concept of engineering biological organisms and studying their growth to be able to identify periods of fast and slow growth. They learn that bacteria are found everywhere, including on the surfaces of our hands. Student groups study three different conditions under which bacteria are found and compare the growth of the individual bacteria from each source. In addition to monitoring the quantity of bacteria from differ conditions, they record the growth of bacteria over time, which is an excellent tool to study binary fission and the reproduction of unicellular organisms.
In this experiment, two chemicals that can be found around the house will be mixed within a plastic baggie, and several chemical changes will be observed.
How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas!
This chemistry activity was created to enhance student learning around balancing chemical equations. It guides students through Phet simulations and then asks comprehension questions thereafter.
This module introduces balancing chemical reactions with stoichiometric coefficients. Includes a link to an interactive website for practicing balancing reactions, a video showing specific practice problems, and a video with animations as visual aids demonstrating why we balance chemical reactions.
This activity is an extension of the common balloon cars, where students explore if and how different gases used as a fuel source effect the distances traveled by the cars.