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Water-holding Capacity of Earth Materials
Students design and conduct an experiment to test their ideas about how to speed up or slow down the rate of an enzyme-catalyzed reaction. They have access to an array of physical and chemical factors that might influence enzyme...
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What is Sound? How Can We Change Sound?
For this lesson, students investigate the phenomenon of sound! Students compare and contrast how sound travels through solids, liquids, and gases. They explain how length and thickness affect sound. Students know the difference between...
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Observations and Inferences
Students observe how to distinguish observations form inferences. In this examining inferences lesson students list observations relating to the activity and discuss the importance of them.
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How Effective is Perspiration at Cooling?
Students collect data on the cooling of water in two different test tubes, one that is wrapped in wet newspaper and one in dry newspaper. They then relate this cooling effect to the body's perspiration.
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A Cut Above the Rest Administration Procedures
Students analyze how the Law of Conservation of Energy applies to the design and use of scissors. Working in groups, they determine the output work for a standard pair of scissors.
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Are Enzymes Specific for Their Substrates?
Students discover enzyme to substrate specificity. The experiment uses samples of glucose and lactose in combination with the enzyme lactase. Students observe the reaction between the lactose and the lactase; the lack of a reaction...
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Suburban Ecosystems
Students conduct simple sampling of plant and insect biodiversity at ground level in two contrasting environments of their own choosing. They recognize and record different species then compare and contrast species numbers in the two...
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Opposites Attract
Pupils demonstrate the attraction of small pieces of paper to a charged plastic rod and conduct experiment with other objects to determine whether they can hold a charge. They then use online applets to apply their experiments to...
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On the Microbe Trail: Bacteria and Aseptic Technique
Students pour, label, streak, seal and store plates in an incubator. They identify areas in their environment that provide a rich fauna of microbes once they have been swabbed. They identify areas of contamination through a laboratory...
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RAINFOREST Mini-Unit
Students engage in a variety of activities to investigate the subject of rainforests. The lesson focuses on the different floors of the rainforest and the types of life that exists on each.
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VERTEBRATES
Seventh graders describe the main characteristics of warm-blooded vertebrate animals. They compare and contrast the two different groups of warm-blooded vertebrate animals by looking at external, reproductive, and growth characteristics.
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Boyle's Law
Students experiment on Boyle's law using balloons and other common materials. In this chemistry instructional activity, students explain the relationship between pressure and volume. They solve problems relating to Boyle's Law.
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The Greenhouse Effect
Seventh graders investigate the temperature change in open and closed containers. In this earth science instructional activity, 7th graders relate this lab activity to greenhouse effect. They create a line graph from data collected in...
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Clouds
Third graders complete various activities about clouds. They create a cloud in a lab, write a cloud story, make a cloud model and complete a webquest.
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Dirty Decomposers
Seventh graders design and conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrot for the materials to be decomposed, and their experiments are carried out in plastic...
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Kites: Patang - The Indian Fighter Kite
Students investigate the history of fighter kites and build their own. In this aeronautics lesson, students discover how other countries utilize fighter kites and where they originated. Students create their own fighter kites in class...
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Water Regulation
Students use their basic knowledge of physiology to analyze graphical data of paramecia under diverse conditions. From the data analysis, Students develop explanations of the animal's response to the concentration of different solutions...
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Hooke's Law
Students explore the relationship between the force applied to a spring and its stretch. They design and conduct an experiment to determine the stretch of spring with 15N of force without having an actual 15N mass.
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Hydrated Salt
Learners plan, design, and carry out an experiment to determine an empirical formula for a hydrated salt X that tell students when all the water has been removed from hydrate crystals.
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Testing a New Drug 1
Students act as chief research scientists with the responsibility of testing a new drug. Students design a controlled experiment to test a hypothetical experimental drug. Students write a clear, concise, and detailed plan to present to a...
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Pooling Around
Students complete a unit of lessons on computing area and volume. They play a Jeopardy game of basic area formulas, calculate surface area of shapes, develop a Powerpoint presentation, and conduct a simulation of finding the surface area...
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Classifying Materials
Students collect data and make observations on how given element samples respond to the field of a magnet and they calculate the density of the samples by finding the mass and volume.
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The Captain And Lake Wilmar
Tenth graders examine the ecosystem of Lake Wilmar through three coordinated performance tasks. They first investigate the effects of pH on freshwater animals by comparing the zooplankton counts from three different areas. They then...
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Are Fruits And Vegetables Really Made of Cells?
Students design and carry out an exercise to determine if a given fruit or vegetable is composed of cells. They dissect out sections of the fruit or vegetable, prepare stained slides, and make observations under a compound microscope.