April 22, 2017, marks the 47th anniversary of Earth Day—a day intended to inspire awareness and appreciation for the Earth's natural environment. Organizers started Earth Day in response to a…
Can Water Make a Bottle Rocket Fly Higher?Intermediate-Level Science ProjectsPhysical ScienceCan Water Make a Bottle Rocket Fly Higher?Downhill Discoveries We think of rockets as being fairly…
Do Bean Plants Grow Better in Soil or in Water?Intermediate-Level Science ProjectsDoes the pH of Water Affect the Growth of Bean Plants?Creating New Plants Through Cross-PollinationDo Bean Plants…
Does the pH of Water Affect the Growth of Bean Plants?
Intermediate-Level Science Projects
Does the pH of Water Affect the Growth of Bean Plants? Creating New Plants Through Cross-Pollination Do…
WHAT IS A HEAT ENGINE? WHAT IS AN INTERNAL COMBUSTION ENGINE? HOW DOES A STEAM ENGINE WORK? HOW DOES A JET ENGINE WORK? GASOLINE ENGINEBIOGRAPHY: FRANK WHITTLE English, 1907-1996 TURBINESFUEL…
(Encyclopedia) Jordan, river, c.200 mi (320 km) long, formed in the Hula basin, N Israel, by the confluence of three headwater streams and meandering S through the Sea of Galilee to the Dead Sea; the…
Each year the American Lung Association issues their "State of the Air" report. They track ozone pollution, short-term particle, and year-round particle pollution listed…
Each year the American Lung Association issues their "State of the Air" report. They track ozone pollution, short-term particle, and year-round particle pollution…
(Encyclopedia) land use, exploitation of land for agricultural, industrial, residential, recreational, or other purposes. Because the United States historically has a laissez-faire attitude toward…
