NASA
Cleaning Water
From their sweat to the water vapor in their breath, astronauts recycle every possible drop of water while in space. After watching a short video describing the different ways materials are recycled and reused in space shuttles, young...
Curated OER
Ask Rustle the Leaf About...Acid Rain
In this acid rain worksheet, students read about acid rain from a leaf's perspective. They fill in the blanks with 9 terms to complete a paragraph about acid rain. They also are given 8 clues to complete a crossword puzzle. Their is a...
Curated OER
Ecosystem Damage from Household Cleaners
Third graders assess the damage done to various ecosystems by cleaning products and discover how scientists test water quality. Using stream water and common household cleaning agents, they work in groups to test for pH levels. Once...
Curated OER
What Is In The Water?
Students investigate the biotic and abiotic factors that are found in an aquatic ecosystem. The emphasis is upon the investigation of present an projections of future water quality. Then students visit a local body of water to gather...
Curated OER
HOW IS PH DETERMINED?
Students estimate the pH based on the use of an unknown substance, determine whether an unknown substance is acid, base or neutral, and evaluate, by the pH determination, which of the unknowns is the strongest acid or base.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: P H Scale
In this advanced simulation, students experiment with changing the ion ratios in solutions and thus the pH. The experiment can be viewed on a macroscopic or microscopic level, or customized.
University of Colorado
University of Colorado: Ph Et Interactive Simulations: P H Scale Basics
In this simulation, students learn how changing the concentration of a solution affects the pH level.
Other
Ed Hume Seeds: Testing Your Soil
Conduct a soil test to find out what nutrients your soil is lacking. This site gives directions on how to gather a soil sample and what nutrients you should test for to get the best soil.