Steel is an example of homogeneous mixture, also called an alloy, which is made of iron and carbon. The presentation introduces learners to elements, compounds, and mixtures. They explore their similarities and differences, and then take...

Why does Nia's water taste saltier than Trey's if she put more into her cup than he did? Math masters set up proportions in order to compare the mixtures. This task effectively has learners apply the concepts of ratio and proportion to a...

In this mixture problem learning exercise, students read story problems, identify necessary information, and solve mixture problems using the mixture formula. This one-page learning exercise contains ten problems. Answers are provided...

Eighth graders determine the presence of starch and sugar in unknown solutions. This task assesses students' abilities to observe, record and interpret data, classify, generalize/infer, construct data tables, and identify sugar and...

Students explore physical science by participating in a class experiment. In this chemistry lesson plan, students discuss what they predict will happen when cooking oil and water are blended together. Students utilize a plastic...

Eighth graders determine the amount of agitation necessary to dissolve various sized sugar particles. This task assess students' abilities to collect, organize, and interpret data, create appropriate graphs, predict future events based...

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

In this soap instructional activity, students produce soap in the laboratory and test their product by using it to wash away engine oil. Students answer four questions about tests they perform on their soap.

Young scholars experiment with solids and liquids. For this mixtures of matter lesson, students combine matter to form solutions. Young scholars hypothesize, test, and analyze the data to draw conclusions. The lesson can be extended by...

Students construct a water filter. In this engineering lesson, students discover how to construct a water filtration system. Students work in groups to sort tools by their properties. Students analyze and construct a water filtration...

Students explore the three types of mixtures through the use of interactive video. They experiment making mixtures using a variety of ingredients, while observing, comparing and contrasting, and identifying the types of mixtures.

Fourth graders use mucilage glue and magnesium sulfate to make crystals. They mix the ingredients, place a drop on a glass slide and observe the forming crystals.

In this mixtures pre-lab worksheet, students compare and contrast suspensions and colloids and solutions and colloids. Students describe the Tyndall effect. This worksheet has 10 short answer questions.

Investigate the Law of Conservation of Mass through a lab exploration. Individuals combine materials to initiate chemical reactions. They monitor for signs of reactions and measure the masses before and after the reactions for...

Students experiment with acids and bases using technology-based "probe-ware", computers, and household products in this exciting biology/chemistry lesson. The lesson was written for an advanced 6th grade class.

In this transition metal ions and redox learning exercise, students read about the formation of metal ions through oxidation and reduction.

In this acid and base worksheet, students calculate the pH of solutions, sketch a titration curve, write equations used to determine the pH of solutions and determine the location on a titration curve of a given molar solution.

Third graders use the scientific method as they separate the colors used in ink. For this chromatography lesson, the teacher introduces students to how chromatography is used in several careers, then students perform an experiment to...

Students investigate why cells divide. In this cell size lesson plan, students observe how far a solution travels into 3 different size model cells of agar. They answer questions about the most effect movement of "nutrients" into the...

In this acid/base and equilibrium worksheet, students solve seven problems including calculating equilibrium concentrations of all species in a reaction, calculating the pH of solutions, determining the direction of a reaction at...

Eighth graders investigate chemical reactions to produce polymers. In this polymers lesson plan, 8th graders experiment with sodium silicate and ethyl alcohol to make a polymer. They also experiment with borax and glue to make a polymer....

Students observe and investigate properties of acids and bases. In this acids and bases lesson plan, students perform 5 different experiments including reactions of acids and metals, reaction of acids with carbonates, neutralization...

In this mixtures worksheet, students brainstorm the problems and possible solutions of how to separate mixtures. This worksheet is a graphic organizer.

In this word search worksheet, students locate 20 words related to science. The word list includes volume, mixture, and solute.