Wikimedia
Wikipedia: Materia
Explore the concept of matter in this Spanish-language encyclopedia entry. This site features the properties of matter, the Law of Conservation of Matter, and other important features of matter.
E-learning for Kids
E Learning for Kids: Science: Loch Ness: What Happens When Solids and Liquids Are Heated or Cooled?
Students will look at what happens to different types of matter when they have a change of state.
Center for Literacy and Disability Studies, University of North Carolina at Chapel Hill
Tar Heel Reader: Liquids: A Science Curriculum Resource Support
Read about solids, liquids, and gases, and find out about the phases of matter.
Florida State University
Florida State University: Intermolecular Forces: Changes of State
Discusses the changes of state that can occur for the three different types of matter (solids, liquids, and gases) and different types of heat energy that have been defined by scientists.
PBS
Pbs Learning Media: Discovering Air
Our understanding about the air we breathe has changed dramatically through time. This illustrated timeline from the NOVA Web site tracks the changing thought on air and the creation of the Periodic Table of the Elements.
Utah Education Network
Uen: Liquid Exploration
Observe the differences between solids, liquids and gases.
Royal Society of Chemistry
Royal Society of Chemistry: Gridlocks: Level 2
A collection of grid puzzles that cover a wide variety of topics in intermediate high school chemistry. These are excellent for topic review and reinforcement. The puzzles can be played online and also downloaded as worksheets. Answers...
Ducksters
Ducksters: Kids Science: Solid, Liquid, Gas
Kid's learn about the science of states of matter. Solids, liquids, gases, and even plasma.
SMART Technologies
Smart: Physical and Chemical Properties
Students will learn the difference between physical and chemical properties of matter.
University of Sydney (Australia)
Thermal Physics Module: Ideal Gases [Pdf]
A molecular model of a gas is introduced and explained. Assumptions behind the ideal gas law are presented. The ideal gas law is stated. Charles' law and Boyle's law are derived from the ideal gas law.
Other
Beautiful Chemistry: Beautiful Structures: Gas and Liquid
In Beautiful Chemistry, we talk about crystals, quasicrystals and glasses, which are all solids. Here, we see the molecular structure of gases and liquids.
Science Education Resource Center at Carleton College
Serc: Polymers & Plastics: Classification & Models
Students will use their prior knowledge about changes of matter including physical and chemical changes to examine and categorize various types of plastics (polymers). They will identify how their chemical properties allow them to have...
Texas Education Agency
Texas Gateway: Ap Physics: Fluid Statics: What Is a Fluid?
By the end of this section, you will be able to state the common phases of matter; explain the physical characteristics of solids, liquids, and gases; and describe the arrangement of atoms in solids, liquids, and gases.
Ducksters
Ducksters: Kids Science: Melting and Boiling
Kid's learn about the science of melting and boiling. How matter changes state from solids to liquids to gases.
Cosmo Learning
Cosmo Learning: Ap Chemistry With Chemguy
Need to review a topic for AP Chemistry? This site features a collection of video lectures covering the curriculum of AP Chemistry. The lectures are broken up by topics and vary in length. Lectures cover thermodynamics, bonding,...
Children's Museum
The Children's Museum of Indianapolis: Exploding Baggies
Learners will witness a fascinating chemical reaction and learn how to identify when a reaction has occurred by combining simple ingredients.
Channel 4 Learning
4 L: Science Essentials: Material World
Learn about topics related to the material world. Each topic includes facts, a glossary, an interactive quiz, printable worksheets, an image bank, and web links.
CK-12 Foundation
Ck 12: Chemistry for High School
This digital textbook covers core chemistry concepts and includes interactive features, real-world examples, and videos.
Texas Instruments
Texas Instruments: A Good Cold Pack
Students use the EasyTemp temperature probe to determine temperature changes as different solid substances dissolve in water. They then develop and test a plan for making the best cold pack using three grams of one of the substances....
University Corporation for Atmospheric Research
Ucar: Plasma
Article explores plasma, an electrically charged gas found in electrical lights and nature.