How do we clean up oil spills and other pollutants in the water? Explore water treatment strategies with a set of environmental science experiments. Groups remove oil from water, work with wastewater treatment, and perform a water...

The liquids did not mix — so what do density columns have to do with it? The seventh part in a series of nine provides the theoretical explanation of why density columns do not mix. The lesson covers the topics related to...

Mass and density — aren't they the same thing? This activity has groups use balance beams and water displacement to measure several objects. The pupils use the measurements to calculate the density of the objects. 

Monarch butterfly populations have decreased by 90 percent over the past 20 years due to misuse and ineffectiveness of some pesticides. Given the challenge to increase pesticide safety and effectiveness, the class, through discussion,...

Can your classes solve the problem of the smelly sweat sock? Young scientists complete a lab investigation that begins by using electrochemistry to generate colloidal silver. They use their solutions to test the rate of microbial growth...

Finding a balance between too much protein and not enough doesn't have to be a guessing game. Young scientists use an interactive lesson to learn how to calculate protein content in cattle feed and how to mix feed to create the ideal...

Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the...

Here is a fine lesson for fifth graders that will give them an idea of the variety of impacts that human-introduced pollutants have on the environment. After an initial class discussion and teacher-led demonstration, pupils brainstorm...

Students identify possible sources of health risks, types of exposures, routes of exposure, and populations that could be affected after discussing water pollution and environmental health hazards. After discussion, students conduct a...

Students participate in an investigation in which they compare a polyethylene bag designed for recycling or disposal with a polyethylene food storage bag. Students use hexane to determine the differences between the low density...

Students explain how pollution affects ground water. They participate in a simulation to discover the location of an illegal dump. Students explore the monetary benefits, risk and environmental concerns are factors in business decisions.

Freddy's Friendly Fruit Market is under attack by fruit flies, and it is up to your aspiring biologists to solve the crime! By reading and analyzing the phenotypes, detectives determine which fly is responsible. This memorable assignment...

In this microbiology worksheet, young scholars complete 7 conclusions questions about the aseptic technique they performed in a group lab.

Students experiment with a pure substance and a phase change. In this heating and cooling curves lesson plan, students study the effects of heating and cooling a pure substance to observe a phase change. They determine both the melting...

Are you eukaryotic? (Answer: Yes.) The first of six installments in the Cells units teaches pupils about the similarities and differences of prokaryotes and eukaryotes. It also covers the functions of various cell components in both...

You can breathe easily now that you've found a winning resource. Young biologists learn about the process of cellular respiration, primarily through teacher-led discussion and instruction. They also consider the concept of...

Environmental science classes read articles about two different scientific studies. One is about the effects of contraceptive chemicals on fertility, and the other is about how a pesticide may be reducing bone density in exposed...

After reading "Aquatic Alchemy," an article about recapturing water for reuse when in space, your class will use calcium hydroxide or hydrated lime to purify cloudy water. Geared toward high school chemistry or environmental science...

Small groups complete a science project involving cleaning up an oil spill. In this experiment, pupils use 4 different sorbents to discover which one absorbs the most oil.  Afterward, they make a data table.

Middle or high school volcanologists watch the 1997 film, Dante's Peak. They make observations as they watch and then write a movie review, focusing on what was accurately represented. They also point out what facts were stretched by...

Whether used as a reading comprehension assessment, as the basis of a mini-lesson on reading strategies, or as extra practice, this exercise will prove to be valuable because of the answers and explanation key that accompanies the...

Bring this non-fiction text into your eleventh and twelfth grade classrooms. Your high schoolers will read the long passage provided, and use the information to complete eight multiple-choice questions. The answer sheet details where one...

A lab in which high schoolers examine the difference between arteries and veins. Budding biologists will find out which blood vessel can stretch furthest, recording their data in a table then answering several questions evaluating their...

The concept of a how pesticides and other chemicals pass through a watershed can be difficult for younger learners to grasp without a concrete example. In the activity here, some blank paper, markers, and a spray bottle are all you need...