abcteach
Abcteach: Experiments
[Free Registration/Login Required] Elementary students learning to do experiments will be able to use these ready-made worksheets for gathering data on evaporation, melting ice and others.
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?
Other
Plasmas International: What Are Plasmas?
Good site with graphics and background on the 4th state of matter.
Other
Elementary Science: Matter
Colorful site provides a brief summary as well as engaging pictures of the three states of matter: solid, liquid and gas.
University of Alaska
Alaska Science Forum: Plasma: The Fourth State of Matter
Good discussion on the conditions and natural existence of plasmas.
NC State University
The Engineering Place: Silly Stuff
An investigation into change of state where students make silly putty.
Quia
Quia: Phases of Matter
Four activities for reviewing vocabulary and definitions related to changes in states of matter.
Simon Fraser University
Chem1 Virtual Textbook: Densities of Substances and Materials
As part of a larger site called "Getting started in Chemistry," this site examines various topics related to the densities of substances and materials. Included in the study are properties of solids, liquids and gases, and how density is...
Other
Colts Neck Township Schools: Hands on Technology: Solids, Liquids, and Gases
Printable classroom-ready worksheets for a series of simple-to-implement experiments about the states of matter.
Other
Coalition for Plasma Science: A Teacher's Guide to Plasma Science Resources
These resources have been collated to National Science Standards, and include lesson planning ideas.
Other
Plasmacoalition: What Is Plasma
This site, which is provided for by the Coalition for Plasma Science, gives a nice introduction to the 4th state of matter.
Other
Plasmacoalition: The First State of Matter
This site from the Coalition for Plasma Science provides a short, interesting paper outlining the relative importance or precedence of plasma compared to the other states of matter.
Channel 4 Learning
Science Essentials: Gases Around Us
Learn about gases, their existence in our lives, and the other states of matter. Educational extras include a glossary, some do-at-home activities, a quiz, and answers to frequently asked questions. A teacher corner also exists with...
Chem4kids
Chem4 Kids: Changing States of Matter
Find out how matter can change from one state to another.
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.
Ducksters
Ducksters: Kids Science: Solid, Liquid, Gas
Kid's learn about the science of states of matter. Solids, liquids, gases, and even plasma.
ClassFlow
Class Flow: Solid, Liquid or Gas
[Free Registration/Login Required] This flipchart gives a flowchart depicting the states of matter-solid, liquid and gas. Students are asked to complete a chart placing various items into these categories.
ClassFlow
Class Flow: States of Matter
[Free Registration/Login Required] This flipchart describes the 3 states of matter and how materials can change through heating and cooling.
ClassFlow
Class Flow: States of Matter Experiment
[Free Registration/Login Required] This flipchart goes through the basics of identifying the different states of matter: solids, liquids, and gases. It also has an exciting (and easy) experiment for students to combine substances, get a...
ClassFlow
Class Flow: States of Matter Quiz
[Free Registration/Login Required] States of Matter Quiz - 10 questions Florida Standard: SC.A.1.2.1
ClassFlow
Class Flow: States of Matter Venn Diagram
[Free Registration/Login Required] States of Matter: Venn Diagram for Solids, Liquids, and Gases.
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.