In this math worksheet, students solve differential equations. Students use similar equations, and analyze ways they differ from one another. Students draw directional fields and sketch solutions. The final three questions are...

Three experiments involving pennies help young chemists see the chemical reactions between copper and other elements. The first experiment is rhetorical (it prompts students to leave a bright penny out for a year) but the second two...

Students watch a slide show about the Philippine Reefs to explore the topic of fish populations. In this reef and fish population lesson, students watch a slide show about fish populations and how the Peace Corps works...

High schoolers become acquainted with the principles of liquid chromatography and construct a liquid chromatography column. Students also investigate the effects of different solvents and solvent concentrations in the separation process.

Students use chromatography to separate substances in Kool-Aid, Crayola markers and leaves. In this chromatography lesson plan, students make chromatograms to separate substances in a mixture through absorption. Students find the Rf...

Students examine the properties in oil in water. In this mixture lesson plan, students read about the Lophelia II 2010: Cold Seeps and Deep Reef Expedition and look at images of deep sea ecosystems. They experiment or participate in...

Students investigate the freezing point depression of water while making ice cream. In this colligative properties lesson plan, students make ice cream using ice, salt and water to freeze milk and sugar. They measure the temperature of...

Students complete experiments with three different bubble solutions to determine which one creates the largest bubbles. Before conducting the experiments, they discuss the ingredients in each solution, and make predictions on which will...

Students investigate the mixtures of solutions. They utilize cups filled with bases and acids. Students test and determine the pH of each cup. The multiple cups are compared to each other in order to chart acids and bases according to pH...

Young mathematicians extend their knowledge of rational numbers on a number line to graph inequalities by first using number cards to compare rational numbers. They finish by using similar reasoning to graph inequalities on a number line.

Given a set of six paint mix ratios, artistic mathematicians produce an equation that relates the number of parts for blue paint to parts for yellow paint resulting new shades of green. 

In this mixtures worksheet, students complete 3 statements about what happens when you mix things together. This worksheet is a graphic organizer.

For this colligative properties worksheet, students solve eight problems. They calculate molarity, molality and grams of substances in addition to using colligative properties to calculate solutions.

In this qualitative analysis worksheet, high schoolers read about all the different tests that can be done in chemistry to give qualitative results. Tests include flame tests, forming precipitates with sodium hydroxide, using sodium...

Students test for the presence of enzymes in fruit and the specificity of those enzymes, as well as to identify and show the susceptibility of enzymes to certain environmental factors (temperature and pH) originating in the enzyme's...

Students are able to compare the effects of the following, using income as a measure of ability to pay: a progressive tax, a regressive tas, and a proportional tax. They explain how a mixture of regressive and progressive taxes could...

Students are introduced to the principles of gel electrophoresis. They practice loading gels and pipetting. In this laboratory activity, food color is separated into constituent pigments. The lab can be run with standard electrophoresis...

In this thermometric titration activity, learners investigate the temperature changes when an acid neutralizes an alkali. High schoolers graph their results from the titration and draw the two best-fit lines on their graph. Where the...

Students observe the chemical reaction that occurs when salt is put on ice, and use the energy that is released to make ice cream.

Students study the concept of ice energy. In this ice energy lesson, students observe what happens when salt is sprinkled on a piece of ice before following a recipe to make two types of ice cream. They note the difference in the two...

Young scholars investigate how salt affects the state of ice. In this ice cream making instructional activity, students change the freezing temperature by adding salt and observing the results. Young scholars use experimentation and...

Students covert ethanol to ethanoic acid using a condenser for this oxidation reaction worksheet. They test the smell of the final product, add sodium carbonate, and test the product with indicator paper. They explain their observations...

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

In this chemical reaction worksheet, students investigate the results of mixing calcium chloride with sodium bicarbonate. They observe the chemical and physical changes that occur, identify the properties of the chemical before and after...