Exactly how environmentally friendly is your school? From the air fresheners in the bathrooms to the cleaning solvents used in the classrooms, young conservationists search the school grounds for sources of air pollution in...

There's no need to water down the resource. A tutorial takes learners through the process of creating dilutions for any solution. Specifically, it focuses on serial dilutions with successive factors of 10.

Young scientists demonstrate their understanding of cell transport on this comprehensive worksheet. Focusing on cellular structure and the different processes that allow materials to move into, out of, and throughout animal...

If you are not part of the solution, then you are part of the precipitate. The presentation covers solutions, suspensions, solubility, dissociation, and acid/base reactions. This is the 19th lesson in a series of 26.

Ready to mix it up? Learners step up to the plate and show what they know in the 12th installment of a 14-part series covering the states of matter. The quiz contains four questions testing the basics of emulsion chemistry.

From molecules to nanotubes, an engaging unit explores the world of tiny science. Fifteen hands-on experiments and lessons engage young scientists as they learn chemistry. Discussions, worksheets, and data analysis reinforce the concepts...

Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions...

[Free Registration/Login Required] While paying attention to the charges, move the salt ions and water molecules around to simulate how salt ions are dissolved in water.

Students identify and control variables to design an experiment to see whether the temperature of a solvent affects the speed at which a solute dissolves.

Understand how temperature, pressure, and the presence of other solutes affect the solubility of solutes in solvents.

Students use their own model of a salt crystal and water molecule to show how water dissolves salt. Then, they relate their observations to the structure of salt, water, and alcohol on the molecular level.

A detailed review of water and its structure. Included are diagrams, animated graphics, and review quizzes. For the advanced high school student.

This activity will have students experimenting with whether all liquids dissolve in water. Activity includes both teacher and student instructions.

Learn what affect changing temperature has in regards to chemical reactions.

In this interactive practice exercise, students fill in the blank with the vocabulary words when given their definitions. There are 99 science vocabulary words in the list.