For this science worksheet, students apply science basic knowledge of chemistry to the puzzles that are listed for the four parts of the sheet while focusing upon the identification of a metalloid.

It's a gas. Middle schoolers build a biogas generator following the directions in this resource. After a few days of observation, they demonstrate that the gas given off by the decomposing manure is flammable. The activity concludes as...

Students conduct a series of investigations on the unique properties of water. In this general science instructional activity, students explain what causes water's surface tension. They explain the different stages in the water cycle.

Your science class reads a silly story in which a mad scientist makes absurd conclusions about an experiment that he conducted. One at a time, he cuts off a frog's leg and commands it to jump. With three, two, and one leg, the frog...

Young scholars explore the formation of volcanoes. In this earth science lesson, students build their own volcanoes in the lab using different materials. They identify the different types of volcanoes.

The question: "What makes something sublimate?" is discussed and explained. Project ideas pertaining to sublimation are suggested.

Capillary action is described. Examples are illustrated. Links to related topics.

Using a question and answer format, this page addresses the question: "What effect may crystallization have on the optical properties of a material?" Crystalline and amorphous solids are compared and contrasted; their properties are...

The question: "What would the triple point of water truly look like?" is discussed and explained. The phases of matter are described.

The question "What is process called when gases go back to solids?" is discussed in detail. A comparison of the processes of sublimation, deposition and condensation is made.