By Pamela Walker, Elaine Wood
Environmental technology Experiments bargains scholars and lecturers the instruments to discover a variety of environmental concerns. via 20 new hands-on actions, scholars can examine extra approximately environmental difficulties and what should be performed to resolve them. evidence, figures, charts, and stories successfully dispense information regarding the surroundings and support bring up understanding approximately well timed concerns. Full-color illustrations, an index, a word list, and print and net assets around out this obtainable new quantity.
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Extra info for Environmental Science Experiments (Facts on File Science Experiments)
8 l] per group) 20 seeds (of any type) 21 22 ENVIRONMENTAL Science experiments sink bathtub irrigation pipe wastewater pipes enlarged irrigation pipe Figure 1 2 2 2 2 2 20 small pots Figure 1 potting soil ruler Walker/Wood Book 2 Environmental Figure 1-(2-4-1) triple-beam balance or electronic scale science notebook Safety Note Wash your hands with antibacterial soap after working with gray water. Please review and follow the safety guidelines at the beginning of this volume. Procedure 1. Your job is to design and perform an experiment to compare how well plants grow in gray water and in tap water.
Quadrants within a study area might be 1 m2. If plants are very dense, smaller quadrants can be used. Likewise, in regions where plants are sparse, larger quadrants are more appropriate. Thousands of invasive plants have found their way into new ecosystems. Garlic mustard (Alliaria petiolata), shown in Figure 1, is a short, herbaceous plant found in most of the United States. This is one of the few plants that can invade and thrive on the floor of deciduous forests. Tree-of-heaven (Ailanthus altissima) can be found in every state and thrives in sunny places, even in the cracks of concrete and mortar.
10 percent: 10 ml of solution and 90 ml of distilled water b. 30 percent: 30 ml of solution and 70 ml of distilled water c. 60 percent: 60 ml of solution and 40 ml of distilled water d. 90 percent: 90 ml of solution and 10 ml of distilled water 7. Pour about 100 ml of distilled water into the “control” petri dish. 8. Pour about 100 ml of each dilution in the appropriate petri dish. 9. Use the pipette to transfer the same number of organisms into each petri dish. Eight to twelve organisms per petri dish will be fine.