Omaha Zoo
Monitoring Amphibians
What sort of shoes do frogs wear? Open toad sandals. If your scholars want experience collecting field samples, this is the lesson for you. After learning the proper way to collect field samples, pupils catch amphibians to test for...
Curated OER
"Conducting a Watershed Snapshot of Blockhouse Creek"
Learners examine specific skills in assessing water quality from a holistic approach. They assess the health of a local watershed and identify problems in the local watershed and suggest remediation.
University of Waikato
Testing Water for Nitrate
How much is too much nitrate in the water? Young scientists discuss the question after they run their own nitrate tests. They also consider sources of nitrates and offer explanations for the levels.
Curated OER
Lithosphere and Groundwater
Focusing on the quality of our water sources, these slides are full of information about the aspects of our soil and groundwater that may affect pollution. The leaching of pollutants and their impact on health is explained. ...
Curated OER
Nitrogen Cycle-Stream Side Science
A thorough background and nitrate sampling lab sheet are provided to share with your young scientists. After discussing the nitrogen cycle with the class, you will break them into small groups and show them how to use their inquiry...
Curated OER
What Do Fish Want?
Topics covered by the notes in this presentation are water components, what is acceptable in terms of water quality for the fish living in it, ammonia and natural filtration, nitrates, and dissolved oxygen. Each slide has the same...
Curated OER
Meat Processing
In this meat processing worksheet, students learn how nitrates are used as curing agents for meat and how tenderizers work. Students compare meat treated with nitrates with meat that has not been treated. Students complete 8 short answer...
Curated OER
Scientific Data: It's Not as Pretty as It Looks!
The difference between accuracy and precision is fundamental for high school science learners. Using test kits for nitrate concentration in water, they compare readings with each other. They consider the accuracy, precision, and bias of...
Curated OER
Names and Formulas of Compounds
In this chemistry worksheet, learners write the correct formulas for each of the listed elements and combination of compounds. Then they write the correct names for each of the given formulas.
Curated OER
Water Quality Survey
Students identify the differences in the water quality of a stream and complete water testing. In this water quality lesson students collect aquatic insects and identify them.
Curated OER
How Can You Test Your Soil?
Learners investigate chemicals in soil samples. In this soil science lesson, students test local soil to measure the pH, nitrate, phosphate, and potassium content.
Curated OER
Solubility Homework Problem Set
In this chemistry learning exercise, learners write the balanced equation for the reaction and rearrange the potassium expression to solve for x. Then they determine how many grams of silver chromatic can dissolve in a specified amount...
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
Investigate Factors Affecting Nitrates in Groundwater
Pupils participate in an experiment in which they investigate the factors affecting the levels of nitrates in groundwater. Using examples, they explain the nitrogen cycle and identify the sources of chemical nitrogen fertilizers. They...
Curated OER
Effects of Nitrate and Phosphate Changes on the Growth of Algae
Students determine the effects of an increase of the amount of nitrate and phosphate levels on the growth of algae. the development of a hypothesis is encouraged and students proceed to a conclusion based on their results.
Curated OER
Water Quality and Nitrates & Phosphates
Pupils examine the effects of nitrates and phosphates on the dissolved oxygen levels in different water sources. In this series of 3 lessons, they consider the reasons for nitrate and phosphate level increases and their effects on...
Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: Nitrate
Discusses the chemistry of nitrate, the negative agricultural effects of too much nitrate in soil and in water sources, its toxicity to plants and livestock, and the impact on human health.
BSCS Science Learning
Bscs: Chesapeake Bay Algal Blooms
In this inquiry, students engage with mapping data to determine what kind of land coverage is contributing the most to harmful algal blooms in the Chesapeake Bay Watershed. Click on the link for teacher resources for teaching guides and...
Texas Instruments
Texas Instruments: Nitrate
Student uses the Nitrate Ion-Selective Probe to measure the Nitrate ions concentration in water samples. In another method, student converts nitrate ions to nitrite and uses the Colorimeter to measure nitrite and calculate the nitrate...
Science Education Resource Center at Carleton College
Serc: Disasters to Nature: Sensitivity of Ground Water Systems to Pollution
Students visit three sites to investigate the areas where there is very high sensitivity for ground-water pollution. They also test the quality of water, measuring the dissolved oxygen, pH, total phosphate, nitrates, turbidity, and...
Other
Valley City Junior High's Water Research: Water Issues
This site talks about the nitrate and nitrogen forms that can be found and how to test for it. Includes illustrative diagrams and graphs.
CK-12 Foundation
Ck 12: Earth Science: Nitrogen Cycle in Ecosystems
[Free Registration/Login may be required to access all resource tools.] Describes the nitrogen cycle.
CK-12 Foundation
Ck 12: Earth Science: Nitrogen Cycle in Ecosystems
[Free Registration/Login may be required to access all resource tools.] Describes the nitrogen cycle.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: How Can You Test Your Soil?
As a citizen scientist, students use a soil test kit to find out how much of each type of chemical is in the local soil.