Curated OER
Lipid Worksheet
In this lipid worksheet, students answer questions about the structure and functions of lipids. They read about the three main lipids in the body including triglycerides, phospholipids and cholesterol and answer questions about each.
Alabama Learning Exchange
Float or Sink?
Experiment with mass and density as scholars figure out what makes things float or sink. First, they watch a podcast introducing these concepts. Be sure to use the comprehension question to test their understanding. Young scientists...
Chicago Botanic Garden
Are All Plants Created Equal?
Photosynthesis requires energy and produces food, and cellular respiration produces energy and requires food. An interesting lesson analyzes the factors that affect the rates of photosynthesis and respiration. Classes spend one day...
Curated OER
EGG-cellent POLYMER PACKAGING DESIGN
Students investigate the concept of a polymer using an experimental design of protecting an egg in a bookbag. They test the properties of polymers and form an educated solution to the proposed problem. Then they describe the steps used...
Texas Education Agency
Texas Gateway: Covalent Bonding: Electron Dot Diagrams
Given descriptions, diagrams, scenarios, or chemical symbols, students will model covalent bonds using electron dot formula (Lewis structures).
BBC
Bbc: Gcse Bitesize: Covalent Bonds
A covalent bond is formed between non metal atoms, which combine together by sharing electrons. Covalent compounds have no free electrons and no ions so they don't conduct electricity.
CK-12 Foundation
Ck 12: Lewis Electron Dot Structures
[Free Registration/Login may be required to access all resource tools.] The following online tutorial describes how a covalent bond forms, including the energy change involved in the process.Students will be asked to use the octet rule...
Wisc-Online
Wisc Online: Lewis Dot Structures of Covalent Compounds
Short slide show provides basic information about drawing Lewis dot structures for covalent compounds. Starts with anatomy of the atom, and then shows the relationship between atomic particles and the Periodic Table of Elements. Offers...
American Chemical Society
Middle School Chemistry: Represent Bonding With Lewis Dot Diagrams
Students draw and interpret Lewis dot diagrams for individual atoms and both covalent and ionic compounds.
American Chemical Society
Middle School Chemistry: Chapter 4: The Periodic Table and Bonding
Six middle school chemistry lessons about the periodic table and bonding complete with handouts and animations.
Simon Fraser University
Chem1 Virtual Textbook: Models of Chemical Bonding: Why Do Atoms Join Together?
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section deals with chemical bonds and seeks to answer the question, why do chemical bonds form?
Concord Consortium
Concord Consortium: Molecular Workbench: Strength of Intermetallic Bonds
View two different substances made from the same two elements. Observe the different strengths of bonds between the two different substances.
Science Education Resource Center at Carleton College
Serc: Valence Electrons and Trends in the Periodic Table
This instructor led activity will produce a partially filled periodic table that contains electron-dot models for the first twenty elements in the appropriate boxes. It will be used as a visual tool for students to connect concepts such...
Museum of Science
The Atom's Family: Mighty Molecules
In this activity, students construct models of molecules using marshmallows and gum drops.
American Chemical Society
Middle School Chemistry: Lesson Plans: Water Is a Polar Molecule
Students develop their own water molecule model to help them understand the idea that water has a slight positive charge at one end of the molecule and a slight negative charge at the other.
Frostburg State University
General Chemistry Online: Molecules and Compounds
A complete lesson on compounds, from introductory material in the beginning to a practice exam at the end. This lesson covers bonding, ionic compounds, molecular compounds, naming compounds, structural formulas, polyatomic ions, and much...
CK-12 Foundation
Ck 12: Flex Book Textbooks: Chemistry Second Edition
[Free Registration/Login may be required to access all resource tools.] A complete, web-based, multi-media textbook covering a wide variety of Chemistry concepts.
Science Education Resource Center at Carleton College
Serc: Loopy Lewis Dot Diagrams
Young scholars will use colored fruit loops to organize valence electrons to develop and master the basics of Lewis Dot diagrams. They will develop processing and critical thinking skills and also master a model of bonding.
Concord Consortium
Concord Consortium: Molecular Workbench: Self Assembling Lattice Structure
View this simulation to see how lattice structures are formed when particles of different shapes and charges form bonds.