American Chemical Society
Middle School Chemistry: P H and Color Change
Learn about color change and pH as it relates to chemical changes.
ClassFlow
Class Flow: Changes of Matter
[Free Registration/Login Required] This lesson is the third of three lessons. It covers the physical changes of matter and explains how chemical changes can be detected.
Other
The Science House: Ziptop Bag Chemistry
In this experiment, three reactions are performed in a sealed Ziploc bag so that they can be observed. Students identify whether physical or chemical change has taken place.
American Chemical Society
Middle School Chemistry: Lesson Plans: What Is a Chemical Reaction?
After observing a demonstration of a chemical reaction between a burning candle and the oxygen in the air, young scholars use atom model cut-outs to model the reaction and see that all the atoms in the reactants show up in the products.
American Chemical Society
Middle School Chemistry: Lesson Plans: Using Dissolving to Identify an Unknown
Students first observe a solubility test between salt and sugar. Next, they design their own solubility test with four known crystals and an unknown to discover the identity of the unknown.
American Chemical Society
Middle School Chemistry: Changing State: Freezing
Students investigate how low temperature causes water vapor to condense into a liquid and then freeze to form a solid.
CK-12 Foundation
Ck 12: Physical Science: Chemical Change
[Free Registration/Login may be required to access all resource tools.] Definition of chemical change and examples, signs of chemical change and how it can be reversed.
CK-12 Foundation
Ck 12: Physical Science: Radioactive Decay
[Free Registration/Login may be required to access all resource tools.] What radioactive decay is and the three different types. How it changes one element to another and its dangers.
CK-12 Foundation
Ck 12: Physical Science: Changes of State
[Free Registration/Login may be required to access all resource tools.] Definition of a change of state and the physical processes that cause it.
Upper Canada District School Board
Tom Stretton's Advanced Placement Chemistry: Liquids and Solids
Take on this self-guided advanced level e-text, and learn about the chemical and physical structure of liquids and solids.
Alabama Learning Exchange
Alex: Freezing Things: States of Matter
The class will go back over the Power Point presentation on chemical and physical properties. The teacher will then conduct numerous liquid nitrogen demos. This lesson is used early in the Chemistry course. The students love it. This...
American Chemical Society
American Chemical Society: Inquiry in Action: Teach Science Well
Online textbook reviews fundamentals of chemistry and physical science via slideshow presentations, notes, and videos. Materials for classroom activities engage students in inquiry-based, hands-on investigations covering molecular...
American Chemical Society
American Chemical Society: Inquiry in Action: Teach Science Well
Online textbook reviews fundamentals of chemistry and physical science via slideshow presentations, notes, and videos. Materials for classroom activities engage students in inquiry-based, hands-on investigations covering molecular...
Concord Consortium
Concord Consortium: Stem Resources: Melting Ice
Using temperature probes, students will monitor the temperature of melting ice cubes in different situations. This lab activity, allows students to view the procedure and answer questions online that can be saved and evaluated by the...
Kent State University
Kent State: Classification of Matter
Nice tree structure which shows the different separation technique needed for the two sides. Also gives examples of physical changes/separation techniques.
University of Maryland
U. Of Maryland: Change of State of Liquid Nitrogen
A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of the vaporization of liquid nitrogen. Shows apparatus and set-up; provides suggestions. Easily adaptable as...
CK-12 Foundation
Ck 12: Physical Science: Hydrogen Bonding
[Free Registration/Login may be required to access all resource tools.] Explains hydrogen bonds including why they form and changes of state.
Other
Homewood City Schools: Classification of Matter
This Homewood City Schools site has an outline form and contains lots of information about the classification and composition of matter. Some of the topics covered are matter and temperature, changes in state, composition of matter, and...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Changing the Freezing Point of Water With Salt
This lesson plan teaches first grade students basic chemistry and physics principles--that saltwater freezes at a lower temperature that plain water.
Science Buddies
Science Buddies: Build a 'Breath Spray Bomb' to Study Small Explosion
Hold onto your hats. In this science fair project, you will make a device that sends a film canister across the room with a small chemical explosion. The energy for the explosion is derived from the combustion of ethanol. You will...
CK-12 Foundation
Ck 12: Entropy
[Free Registration/Login may be required to access all resource tools.] After identifying the two driving forces behind all chemical reactions and physical processes, students investigate entropy, and predict whether the entropy change...
Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: Methane
Article explaining what methane is, its impact as a greenhouse gas on global warming, and natural and man-made sources of methane. (Published: April 30, 2010)
Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: Ozone
Article explaining what ozone is, how it forms in the atmosphere, and the environmental problems it creates. (Published: August 22, 2008)
CK-12 Foundation
Ck 12: Physical Science: Recognizing Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] Signs that a chemical reaction has occurred.