Curated OER
DNA Cut and Paste Activity
Here is a cut and paste activity worksheet designed for older students. They fill in the blank with information about the composition of DNA, then create a DNA strand with its complimentary nucleotide chain.
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
DNA and Cell Reproduction
These slides have lovely images to illustrate the Double Helix and replication. The specifics of chromosomes within cells and the numbers and structure during different stages of cell replication are explained.
Curated OER
Phosphate Testing Contract
Students examine how to prepare an experimental procedure. In this scientific method lesson students conduct an investigation on phosphate.
Curated OER
How Can You Test Your Soil?
Students 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
Nomenclature Worksheet
In this chemistry worksheet, young scholars write the appropriate chemical name for the 15 compounds listed. Then they write the appropriate chemical formula for the 15 compounds listed.
Curated OER
DNA!
In this biology learning exercise, students identify and locate various vocabulary terms pertaining to DNA. There are 29 biology terms located in the word search.
Curated OER
Effects of Nitrate and Phosphate Changes on the Growth of Algae
Learners 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.
Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: Phosphate
Discusses what phosphates are, their role in the phosphorous cycle, where they occur in the natural world, their chemistry, and the impact of the use of phosphate fertilizers in agriculture.
Vision Learning
Visionlearning: Earth Cycles: The Phosphorus Cycle
An introduction to the significance of phosphorus in regards to living organisms. An explanation of the phosphorus cycle is discussed in different scenarios.
OpenStax
Open Stax: Anatomy & Physiology: Acid Base Balance
Students learn how buffer systems in the body - the respiratory and the renal - affect the blood pH.
OpenStax
Open Stax: Anatomy & Physiology: Electrolyte Balance
Students will learn about the role of the six most important electrolytes in the body, and then study the disorders associated with abnormally high and low levels of these electrolytes.
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...
Estrella Mountain Community College
Online Biology Book: Dna and Molecular Genetics
Microscopic images, detailed information, and illustrated diagrams help explain DNA and molecular genetics in this college-level textbook.
Geography 4 kids
Geography4 kids.com: Cycling Phosphorus
An essential element in the ecosystem is phosphorus. Discover the phosphorus cycle, what depends upon it, and how it works.
Simon Fraser University
Chem1 Virtual Textbook: The Phosphate System
Acting as an overview from the General Chemistry Virtual Textbook, this site acts as one in a series of slides on acid-base systems. This particular slide deals with phosphates and the three pKs of the phosphate system.
Other
Lenntech: The Phosphorus Cycle
A concise explanation of the phosphorus cycle. Also contains a flow diagram which illustrates the flow of phosphate through the cycle.
Zero Bio
Zero Bio: Cellular Respiration Game
Make sure you know your facts before playing this game! Concepts of cellular respiration are the focal point of the questions. Get them correct and hit the target, or get them wrong and your arrow will flop.