American Chemical Society
Middle School Chemistry: Protons, Neutrons, and Electrons
Explore the particles that make up atoms: protons, electrons, and electrons.
American Chemical Society
Middle School Chemistry: The Periodic Table
Get a quick overview of the Periodic Table of Elements basics.
American Chemical Society
Middle School Chemistry: The Periodic Table & Energy Level Models
Find out how energy level models are represented on the Periodic Table of Elements.
American Chemical Society
Middle School Chemistry: Energy Levels, Electrons, and Covalent Bonding
Discover how covalent molecular bonding affects the energy levels of electrons.
American Chemical Society
Middle School Chemistry: Energy Levels, Electrons, and Ionic Bonding
Explore ionic molecular bonds and how electrons and their energy levels come into play.
American Chemical Society
Middle School Chemistry: Water Is a Polar Molecule
Explore the water molecule, and understand how it is a polar molecule.
American Chemical Society
Middle School Chemistry: Surface Tension
Explore the chemical properties involved in surface tension.
American Chemical Society
Middle School Chemistry: Why Does Water Dissolve Salt?
Explore this animation to learn why water dissolves salt.
American Chemical Society
Middle School Chemistry: Using Dissolving to Identify an Unknown
See how using the process of dissolving can be used to identify an unknown substance.
American Chemical Society
Middle School Chemistry: Does Temperature Affect Dissolving?
Investigate the difference between the solubility of salt and sugar in hot and cold water.
American Chemical Society
Middle School Chemistry: Can Liquids Dissolve in Water?
Find out if liquids can dissolve in water.
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.
American Chemical Society
Middle School Chemistry: What Is a Chemical Reaction?
Use chemical formulas to visualize how chemical equations are balanced.
American Chemical Society
Middle School Chemistry: Controlling the Amount of Products in Chemical Reactions
A quick look into how to control the amount of products in chemical reactions.
American Chemical Society
Middle School Chemistry: Forming a Precipitate
This diagram illustrates a chemical reaction forming a precipitate.
American Chemical Society
Middle School Chemistry: Temperature and Rate of a Chemical Reaction
Watch molecules collide with enough energy that bonds break and form new bonds in a chemical reaction.
American Chemical Society
Middle School Chemistry: A Catalyst and the Rate of Reaction
Watch and learn about two hydrogen peroxide reactions in which potassium permanganate is the catalyst.
American Chemical Society
Middle School Chemistry: Energy Changes in Chemical Reactions
Use these demostration video clips to help understand the energy changes in some chemical reactions.
American Chemical Society
Middle School Chemistry: P H and Color Change
Learn about color change and pH as it relates to chemical changes.
American Chemical Society
Middle School Chemistry: Neutralizing an Acidic Solution
Learn how an acidic solution is neutralized.
American Chemical Society
Middle School Chemistry: Co2 Reacting With Water
See how carbon dioxide reacts with water to produce carbonic acid.
American Chemical Society
Middle School Chemistry: Natural Resource in the Gel Worm Sodium Alginate
See how the gel worm sodium alginate is made in this illustrated slideshow.
American Chemical Society
American Chemical Society: The Best of Wonder Science: Sample Activities
A collection of nine sample science activities for elementary students, from a two-volume book by the American Chemical Society.
American Chemical Society
American Chemical Society: Best of Wonder Science: Air: It's Really There [Pdf]
An experiment to explore the properties of air, using a cup placed upsidedown in water.