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

In this preparation of triiodomethane instructional activity, students use propanone to prepare triiodomethane. Students use filtration and recrystallization in order to make the product. They determine the melting point...

In this thermometric titration worksheet, students determine the concentrations of hydrochloric acid and ethanoic acid using a titration where they measure the temperature of the solution as they titrate. The equivalence point is found...

In this composition of soil instructional activity, students study the make-up of soil by identifying the amount of air in the soil, the amount of water in the soil, the size of the mineral grains in the soil and the proportion of humus...

In this volumetric analysis instructional activity, high schoolers use a standard solution they made of sodium carbonate to find the concentration of a hydrochloric acid solution by titration. Students calculate the number of moles of...

In this first land plants worksheet, students read about the major events that allowed plants to evolve on Earth. Students read about the primary and secondary atmospheres, the formation of the ozone layer to protect from UV light and...

For this volumetric analysis worksheet, high schoolers prepare a standard solution of sodium carbonate by following the given directions. They later use the prepared solution in a laboratory practical.

In this concentration changes and equilibrium learning exercise, students experiment with iron (III) ions and thiocyanate ions to observe the effects of concentration on the equilibrium of solutions. Students make observations of their...

For this enthalpy of reactions worksheet, students use a known amount of copper (II) sulphate solution and an excess of zinc powder to calculate the enthalpy change of the reaction. Students measure the temperature change over the course...

In this redox reaction worksheet, students perform a redox titration in order to determine the number of iodide ions which react with each mole of iodate (V) ions in a solution.  Students calculate their answer using a given...

Students examine color perception and how it relates to metamerism.  In this color lesson plan students complete a lab activity that shows them the three basic components of color perception. 

Students compare their perceptions of risk to the perceptions of scientists and risk professionals. in small groups, they evaluate risks on a scale of 1 to 10 for the average American on a yearly basis.

Physical science learners define matter, explain the law of conservation of matter, and identify compounds according to their state on this twenty-question test. Most appropriate for the introductory physical science class, this resource...

An incredibly thorough lesson plan on vitamins, and how to keep one's body at peak health. Learners access a variety of excellent worksheets embedded in the plan that have them consider raw vs. cooked foods, a vegetable nutrition...

This is the grown-up version of the classic "float an egg in salt water" experience, plus an experiment in soap making. High schoolers explore density, but more importantly, practice accuracy, precision, and the use of significant...

In a hypothetical scenario, food chemists use titration to concoct a brine solution for producing the crunchiest pickles. They also analyze store-bought pickle juices. In addition to reinforcing titration techniques, the lesson requires...

Students investigate the cause of death of a fictitious school janitor. They develop hypotheses based on information discovered by examining the labels of household chemicals.

Students grow E. coli strain HB101, which contains the plasmid pUCD607 with the bioluminescence (Lux+) gene. The plasmid containing the Lux+ gene is isolated from the E. coli, then characterized by restriction analysis.

Learners explore DNA restriction mapping. They cut pieces of paper into lengths representing those produced when specific enzymes are used to cut a strand of DNA.

Biotechnology pros produce their own biofuel using waste oil and fresh vegetable oil. They test the quality of their product using titration techniques and pH analysis. They write their observations and report their findings. Be aware...

Practice parallel structure with a multiple-choice exercise. Twenty questions challenge learners of all ages to correctly fill in blanks with phrases that are parallel in structure to what is already there. Tip: As noted, this worksheet...

Challenge your pupils' writing skills with this two-page worksheet. There are a total of twenty sentences which must be read in order to determine whether or not they contain errors in parallel structure. Note: This worksheet accompanies...

Elevate young scientists' skills with unit conversion using the stair-step method. Detailed instructions and a neat stair-step diagram are on the first page. Four pages of practice problems follow, mostly with real-world applications....

Get hands-on in your physical science class by having learners conduct electricity with their own hands! By placing one hand on each of two different metals, a current can be generated and measured on a microammeter. Make an experiement...