Learners investigate how water passes through cell membranes. In this biology lesson, students differentiate osmosis and diffusion. They illustrate the movement of water in both processes.

High schoolers examine the disparity of resources between developing and industrialized nations, and research the problem of water availability as world populations increase and natural resources are stressed.

Students are introduced to the concept/idea of a vector, what it represents and why they are used. They develop an understanding of what vectors are, how and why they are used.

Students investigate the mixing of light. They form a hypotheses to reason why color changes occur and they write conclusions and ask new questions arising from the investigation. Students identify the primary and complementary colors of...

Learners participate in a game designed to familiarize themselves with their classmates and introduce a unit on endangered species. They each have an endangered species name taped to their back and must determine the species name by...

In this biologically important molecules worksheet, students fill in the blank with information about carbohydrates, lipids, and proteins. Students also make notes about nucleic acids.

For this polynomial equations worksheet, students evaluate roots and draw vector representations. This three-page worksheet contains four problems.

Ninth graders examine the electrolysis of water by completing an experiment.  In this water lesson students will explain how hydrogen can be extracted from water and how energy flows through an electrolysis system. 

Students explore solubility of gases in water, Henry's Law, LeChatelier's Principal, and supersaturation of gases in water.

High schoolers estimate the size of a molecule of oleic acid. They conduct an experiment using chalk dust, water, and oleic acid, solve various calculations, and answer discussion questions.

Students explain the importance of the five main biogeochemical cycles. In this chemistry lesson, students discuss how ions are transported in the environment. They design an experiment to collect data on eutrophication.

Students are introduced to the wave nature of light. In groups, they discuss Young's experiment and how diffraction and interference demonstrate the wave nature of light. Using examples, they show constructive and destructive...

Pupils investigate techniques involved in extracting and isolating DNA. Students extract and observe onion DNA.

Students investigate the concept of molecular structure. They describe the behavior of simulated molecules and identify any dislocations in crystalline structures. They also define various related vocabulary words and use them in...

Students observe crystals under the microscope. In this science lesson, students compare how the crystal look like using their eyes, hand lens and microscope. They identify the type of crystal based on the amount of light they allow to...

Students are introduced to the topic of electromagnetic induction. In groups, they describe ways in which the magnetic flux can change and discuss emf and current. They use different scientists laws and apply it to various scenerios in a...

Students study DNA by isolating it from plant tissue. They determine the purpose of each step in the isolation procedure as it relates to the physical and biochemical characteristics of the genetic material

Students experiment with DNA by isolating it from plant tissue. They investigate whole onions to prepare DNA. They complete the experiment to examine the structural characteristics of DNA.

Students learn each other's name and at the same time become familiar with the name of an endangered species. Without the student watching, their name and the name of an endangered species is placed on their back with tape. Students go...

Graphic representing polar solute particles, with brief accompanying notes. Part of a slide show on chemical change.

A knowledge map with clickable links related to polar solutes.

The resource examines parametric equations and polar coordinates. Topics investigated are parametric curves, area with parametric equations, arc length with polar coordinates, and surface area with polar coordinates. Class notes,...

A knowledge map with clickable links related to nonpolar solutes.

[Free Registration/Login may be required to access all resource tools.] Covers solubility in water and polar molecules.