Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....

This lab activity is geared toward experienced chemistry learners, in particular, those who are familiar with organic chemistry. They will create a synthetic elastomer  and then make observations and measurements of its different...

This in-depth organic chemistry lab walks learners through an investigation of the effect of initiator concentration on the resulting molecular weight of polystyrene. It is important that you use this instructional activity with...

Examine the chemistry of the laundry room! A thorough video explains the polarity and non-polarity properties of soap. The tutorial continues to explain the advantage of these properties in stain removal by showing the...

Students design experiments examining the effects of various solutes on water. They record results on graphs explaining any unexpected consequences of their experiments and determine if their hypotheses were correct.

Eighth graders examine different solutions.  In this solution material lesson plan students complete a lab activity and several worksheets. 

Students examine physical change with different temperature and solvents. In this elements and compounds lesson, students conduct experiments to discover what happens to the mass of a substance when is undergoes a physical change.

Explore the importance of a concentration gradient in the rates of dissolution. Using the ocean ecosystem, learners study rates of dissolution around coral reefs. A hands-on experiment helps individuals discover the effects of changing a...

Ninth graders investigate the factors affecting solubility. In this chemistry lesson, 9th graders differentiate solvent and solute. They give examples of real world application of solutions.

Students investigate various chemical reactions when creating mixtures in ziplock baggies. In this chemistry lesson, students will recognize various chemical reactions and cite evidence. Safety and assessment strategies are included in...

Students calculate the concentration of different solutions. In this chemistry lesson, students explain what a solution is. They explain ways to change the concentration of a solution.

Students predict the product of chemical reaction using the solubility rules. In this chemistry lesson, students balance ionic equation. They perform a lab to check if their predicted products are correct.

Students examine the rule of "like dissolves like." They define and describe solutions and solubility models on molecular liquids, ionic solids, and molecular solids.

Students explain the mole concept and use this concept to prepare chemical solutions of particular molarities.

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...

Learners explain the process of polymerization. For this chemistry lesson, students produce carboxylesterase in the lab. They test its effectiveness in removing the by-product odor.

High schoolers separate food coloring using liquid chromatography. In this chemistry lesson, students explain the effects of different solvents on the rate of separation.

Third graders conduct experiments in matter to create chemical changes resulting in gases. By mixing solids and liquids, they create a chemical reaction and capture the gas in balloons. After observing the balloons fill with carbon...

Students hypothesize about the amount of carbon dioxide in soda bottles. In this chemistry lesson, students design an experiment to solve the problem. They share findings in class.

Students explain the basic concepts of polymerization. Students participate in a lab to create a crude preparation of carboxyl esterase and test its effectiveness in reducing the residual monomer in an emulsion such as paint.

Students examine solubility and the significance of water.  In this aqueous solution lesson plan students complete a lab activity on soil profiles.

Students explore the factors that can increase the rate of dissolution for a solid. They complete a laboratory exploration in which they compare the dissolution rate of a whole sugar cube to that of a crushed sugar cube in a variety of...

Young scholars 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 observe an experiment of freezing point depression using club soda. Through observation, they note that the carbon dioxide molecules disrupt the capacity of the water molecules to solidify. Precautions must be taken to assure...