Students examine agarose gels to compare a known DNA sample to an unknown sample to determine the quantity and size of an unknown DNA sample.

In this interactive grammar worksheet, students choose either the word "is" or "are" from the drop down menu to complete each of the ten given sentences.

Students explore number sense by completing a statistical analysis game in class. In this data graphing lesson, students utilize visual references such as colored cubes and tiles to map out the results of an experiment outcome such as a...

Pupils are able to transcribe to scale the plant features of a common landscape. They determine true north and south and collect and record data on a table. Students calculate a rating for and describe a definition of insulation and...

Students conduct an experiment to investigate the rate of microbial growth at different temperatures. Students predict what will happen to the food at various temperature and test their hypotheses. Students describe the differences in...

Students conduct a lab to determine the best way to separate a variety of mixtures choosing between paper, thin layer and column chromatography. They use chromatography techniques to identify unknown substances and submit a lab report on...

Eleventh graders use titration methods to study properties of antacids. They look at the strength, effectiveness, PH, and effect of supplements taken at the same time. They make observations after the different mixtures are combined and...

Students explore weight. For this math lesson, students predict which item weighs more and discuss how they arrived at their decision. Students weigh several items to determine which weighs more.

Students identify greenhouse gases. They explain why perfluorocarbons are a bad alternative to chlorofluorcarbons. They determine both the least and most influential greenhouse gases.

High schoolers conduct an experiment to determine the frequency of pulling various parts of an ancient Greek sculpture out of a hat.

Pupils produce a vertical profile of a stream and map and define thalweg, point bar, and cut bank. They measure flow velocity differences across a stream transect and equate flow velocity with size of substrate sediment collected.

Students receive a worksheet that describes a parade. They tell what the 10th item in the parade will be. Students draw the parade, and tell the pattern they see using letters. Students design their own parade with the same pattern. They...

Students conduct an experiment in which they react sodium bicarbonate with hydrochloric acid to determine the molar ration between the two reactants. Students must write correct formula and a balanced chemical equation and explain how...

Students conduct a regional watershed analysis of an area of their choosing. Using on-line data and their personal knowledge of the area, they determine the annual hydrologic budget and teach the class about "their" watershed.

Students study the habitats found in their schoolyard. They apply firsthand, what they have learned in the classroom to something familiar to them. Students look at biotic, abiotic habitats. Small groups will present their findings to...

Fourth graders role play as contractors responsible for constructing a chain across the Hudson River. They apply math skills to determine the total weight, number of links, and cost of the project.

Middle schoolers participate in an experiment in which they gather and examine particiles in the air. They place pollution detectors at different locations and identify problem areas. They discuss how engineers can use this type of...

In this missing words worksheet, students answer multiple choice questions by filling in the blanks to sentences with words. Students complete 20 sentences.

Learners observe how measurements are made with different instruments.  For this remote sensing lesson students investigate the physical state of surfaces including the surfaces of the solar system. 

Students develop a test tube model of an oil spill in order to experiment with conditions needed for bioremediation. They apply the principals of experimental design by analyzing a research article on the EXXON Valdez bioremediation...

In this possession worksheet, students complete the sentences with possessive nouns. Students complete 14 multiple choice questions.

In this sentence agreement worksheet, students choose the correct form of anybody or somebody to complete 8 sentences. Students also fill in the correct pronouns for sentences containing numbers of people for 6 sentences.

Second graders get many opportunities to practice their measurement skills.

Students examine different types of chemical reactions. They explore how alcohol molecules affect the reaction rates. They answer discussion questions to end the lesson.