American Geosciences Institute
American Geosciences Institute: Earth Science Week: Chemistry of Burning
In this activity, students use pipe cleaners and foam balls to build a model of a hydrocarbon molecule. They then modify it to demonstrate the chemical reaction that happens when the hydrocarbon is burned.
CK-12 Foundation
Ck 12: Chemistry Simulation: Speedy Smells
[Free Registration/Login Required] Explore how the mass of a molecule affects how quickly a smell will reach our noses.
Bill Nye
Bill Nye: Sock It to Me
This tutorial by Bill Nye explains how evaporating water (or sweat!) can cool you down.
Simon Fraser University
Chem1 Virtual Textbook: Molecular Collision
The General Chemistry Virtual Textbook, or Chem 1, is broken into several sections covering various aspects of topics related to chemistry. This section seeks to answer the question, how far does a molecule travel between collisions?
American Chemical Society
Middle School Chemistry: Air, It's Really There
Explore the properties of air, and what happens to air when heated and cooled.
Museum of Science
The Atom's Family: Phases of Matter
Help the Phantom choose a material and observe the changes at different temperatures in the molecule chamber. What happens to the elements or molecules as the temperature changes?
New York University
New York University: States of Water
Use this resource to learn about the three different phases of water; solid, liquid, and gas. What happens to water as it changes into a solid or gas? Includes short and easy to do activity.
McREL International
Mc Rel: Whelmer #33 Learning Activity: Density Balloon
A simple activity that investigates the effect of heat on the volume of a gas. The activity is presented in lesson plan format that meets NSES standards.
PBS
Pbs Teachers: Bottle Fountain Experiment
Demonstrate how heating expands air molecules by constructing a bottle fountain powered by air pressure.
CK-12 Foundation
Ck 12: Plix: Structure of Water: Phases of Matter
[Free Registration/Login Required] Explore this interactive by dragging the red dots to match each physical state of water with the correct picture of its molecules.
Other
Atoms in Motion: Noble Gases
The ideal gas law is an empirical law; it's a relationship between the pressure in a system of gases to the volume, the temperature, and the number of gas atoms/molecules in the system. This "law" is valid if the gas atoms/molecules are...
Other
Atoms in Motion: All Matter Is Made of Atoms
Atoms are very, very small. Atoms are so small that it is often said that there are as many atoms in a single grain of sand as there are grains of sand on all of the world's beaches - certainly a difficult thing to prove, but you get the...
PBS
Pbs Teachers: Hot Air Balloon Experiment
Explore how heat affects the density of air by building and flying a hot air balloon using large plastic bags and the hot air from an electric hairdryer.
National Earth Science Teachers Association
Windows to the Universe: Ammonia Nh3
Read about the chemical compound ammonia and learn how it is part of the Nitrogen Cycle.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: University of Colorado: States of Matter: Basics
An interactive simulation will heat, cool and compress atoms and molecules. Watch as they change between solid, liquid and gas phases. Recognize that different substances have different properties which will affect the temperatures for...
PBS
Pbs Learning Media: A Hole in the Sky
This video segment adapted from Interactive NOVA profiles two scientists who were surprised in 1984 to discover a hole in our atmosphere's ozone layer as big as the United States. [3:47]
Vision Learning
Vision Learning: Three States of Matter
Concept animation compares molecular movement of solids, liquids, and gases.
Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: Halocarbon
Article explaining what halocarbons are, where they occur in nature as well as man-made sources, how they are used, and their negative environmental impact. (Published: October 28, 2011)
American Chemical Society
Middle School Chemistry: Changing State: Condensation
Students investigate water cycle processes by testing how cooling affects the rate of condensation of water vapor.
Science Education Resource Center at Carleton College
Serc: Charles' Law and Ivory Soap
With this activity students will observe and record the properties of various types of bar soap. They will discover that due to the ingredients some soaps are denser than others, and ivory soap will actually float. Students will see a...
Simon Fraser University
Chem1 Virtual Textbook: Some Consequences of Random Molecular Motion
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 random molecular motion and topics such as diffusion and effusion.
American Chemical Society
Middle School Chemistry: Can Gases Dissolve in Water?
Use this interactive animation to find out about whether or not gases dissolving in water.
Science Education Resource Center at Carleton College
Serc: Mn Step: States of Matter: Which Will Propel the Balloon?
For this activity, students take part in a simulation of the three states of matter where they role play being molecules. They then create simple balloon rockets and must explain why a gas is the only state of matter that can cause the...
Simon Fraser University
Chem1 Virtual Textbook: Effects of of Intermolecular Forces
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 intermolecular forces and topics including repulsive forces and...