One of water's claims to fame is as the universal solvent. Young physical scientists experiment to discover which materials dissolve in this special compound. You could never be more prepared for teaching this lesson than by using this...

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.

Groups use alcohol and chromatography paper to separate the color components of black ink. The purpose of the activity is to allow the class to become aware that mixtures exist in hidden places. 

Sometimes liquids just don't get along together. A fun experiment has scholars determine whether various liquids dissolve in water. They pour isopropyl alcohol, vegetable oil, and corn syrup into cups of water to see which ones mix well...

Mixtures and solutions are different; one can be separated fairly easily and the other cannot. This hands-on experiment was written specifically for learners with visual impairments or blindness. They will use lemonade and trail mix to...

Heat up your lessons on boiling points. The resource provides a three-part activity: first, groups find the boiling point of solutions; second, they create boiling point curves for salt and sugar solutions; and third, they mix a solution...

[Free Registration/Login may be required to access all resource tools.] Tutorial defines osmosis and the difference between osmosis and diffusion. Students will learn how to distinguish solute from solvent and solution and the hypotonic,...

To increase students' awareness of possible invisible pollutants in drinking water sources, students perform an exciting lab requiring them to think about how solutions and mixtures exist even in unsuspecting places such as ink. They use...

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

If you live in a place that gets cold in the winter, you have most likely seen trucks spreading a mixture of sand and salt on the streets after a snowfall to help de-ice roads. This basic chemistry project gives you clues to discover how...

Ever wonder why some colors dissolve in water and others don't? Watch this video to learn why. [2:16]

Experiment shows students how to use the lowered freezing point of water to chill another mixture (ice cream) to the solid state. Teacher's notes provide background information.

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.