In the summer of 1815, snow fell every month in New England. Was this related to the volcanic eruption of Tambora in Indonesia earlier in the year? Young scientists design their own experiments to research the long-term effect a volcanic...

Support science instruction with a combination of engaging activities and skills-based worksheets that focus on clouds. Learners take part in grand discussions, write an acrostic poem, complete graphic organizers, solve word...

Observe the water cycle from the comfort of your classroom with this excellent earth science experiment. Working collaboratively, young scientists first create terrariums complete with hills, plants, lakes, and an...

Provide your class with the opportunity to view our carbon cycle close up. Young scientists research the cycle of oxygen as it completes the tasks of photosynthesis and respiration. They explore the importance of carbon in an ecosystem...

Science rocks! Explore three types of rocks and the rock cycle with an igneous rocks experiment. Pupils discuss textures, composition, and learn how melts are formed from the Earth's crust. They weigh materials using a scientific scale...

A wonderfully complete primer on exothermic reactions in the context of chemical spills. Covers Reactions with Air or Water, Combustible Organics, Polymerization Reax, Decomposition, Corrosion, and much much more.

Find answers to common questions asked about environmental chemistry. Environmental toxins and recycling are among the topics covered in the FAQ.

Entry from the Catholic Encyclopedia. Contains excellent biographical information, including works, the atmosphere of his times, and the variious reactions against his work. Please note that ?The Catholic Encyclopedia? is a historic...