Cell phones are likely made of gold—at least part of them! An interesting lesson explains the conventional and not-so-conventional uses of the popular element gold. From the Inca empire to modern-day technology, learners discover gold...

In this significance of science in society worksheet, 8th graders read 3 paragraphs, then interactively answer 9 comprehension and grammar questions, with immediate online feedback; video at the beginning is not longer available, but the...

In this science and technology worksheet, students read and answer the 11 discussion questions relating to science and technology.

In this reading comprehension learning exercise, learners read a passage from an essay by George Orwell and a passage from an essay by T.H. Huxley.  Students have 12 minutes to answer 8 reading comprehension questions in this SAT...

An interactive experience showcases environmental and economic benefits of a green roof. Take a virtual tour of a real green roof and learn about a career in landscape architecture. Downloadable workbook is available for students, while...

This website houses kids science projects and experiments, science fair projects and science articles.

This interactive timeline from the AMERICAN EXPERIENCE Web site features influential technological innovations from 1750 to 1990.