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Pond-water Populations

For Teachers 5th - 8th
Students design and conduct and experiment on algae, for a two week period, to answer the question "In your investigation, how does changing one factor affect the growth of organisms?"
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Stimulus/Response in Invertebrates

For Teachers 5th - 8th
Students design and conduct and experiment to determine how invertebrates react to an outside stimulus such as light and other stimuli. Student must develop a clear plan of action, collect data in an organized manner and analyze their...
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Water-holding Capacity of Earth Materials

For Teachers 5th - 8th
Young scholars 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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Survival

For Teachers 9th - 12th
Students determine the best material from which to make a jacket to keep the body warm in a cold, dry, windy climate. This task assesses the student's abilities to perform an entire investigation.
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Ice Cold

For Teachers 9th - 12th
Students design and conduct an experiment to investigate what happens when salt and ice come together and to determine if one form of salt is better for melting ice on steps and sidewalks.
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The effectiveness of Antacids

For Teachers 9th - 12th
Students design and conduct a scientific experiment to test which of four antacids would be most effective for neutralizing acids. They rank the antacids in order from most effective to least effective and explain how they determined...
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Car Wash

For Teachers 9th - 12th
Students determine the most appropriate site for a car wash, based on each site's soil characteristics (chemical, physical) and topographic features. They perform an experiment to determine the changes to three different soil types when...
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That's the Way the Ball Bounces

For Teachers 9th - 12th
Students investigate and compare the bouncing ability of the materials from which four different balls are made. They determine which material performs the best for use as a basketball. After collecting data in a small group they...
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Coat Caper

For Teachers 9th - 12th
Students examine pollen and fibers taken from a garment. They analyze pollen from new hybrids and compare it to the samples from the garment then make individual conclusions concerning the specific historical authenticity of the garment.
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Is Organic Food Worth the Extra Cost?

For Teachers 9th - 12th
Students calculate the amount of pesticide residue in selected foods for two pesticides and determine if these levels are safe. They read an article about a research study looking for metabolites of these pesticides in children. Finally,...
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Jamestown Fort: Finding History

For Teachers 4th - 5th
Students identify artifacts discovered from the exploration of the Jamestown fort in order to help them create a short fictional account about the lives of Jamestown's first inhabitants. In this history lesson, students research the...
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Movement of Air Mind Map Activity

For Teachers 7th - Higher Ed
Students explore the movement of air.  For this air lesson, students discuss and give examples of air ventilation.  Students compare outdoor and indoor air quality.  Students create mind maps as a visual representation of...
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Electromagnetic Spectrum/Spectroscopy

For Teachers 10th - 12th
Students examine the electromagnetic spectrum and demonstrate the elements within.  In this investigative lesson students complete a demonstration and calculate the energy of a photon. 
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Buoyant Force

For Teachers 10th - 12th
Students investigate the scientific concept of why some objects float when put in a liquid solution. They apply the laws of motion and force while conducting classroom activities. Students also take notes and answer target questions to...
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Exploring Magnetism

For Teachers 9th - 11th
Students participate in several activities that allow them to better understand magnetism.  In this exploratory lesson students take part in different activities to help them to better understand magnetic fields, circuits and...
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Butterfly Round-Up

For Teachers 2nd - Higher Ed
Students classify the characteristics of butterflies and moths moths. In this life cycle instructional activity, students identify butterflies and moths common in the state of Iowa as well as their characteristics.  Students then...
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Maintaining Plant Genebanks

For Teachers 9th - 12th
Students examine the use, costs, and the need for plant gene banks. The rationale for gaining ownership over scientific information and the implications of the developing nations' reliance on biotechnology is explored in this lesson.
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Survival

For Teachers 6th - 8th
Students determine the best material from which to make a jacket to keep the body warm in a cold, dry, windy climate. This task assesses the student's ability to perform an entire investigation. In this question the independent...
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Unknown Liquids

For Teachers 5th - 8th
Learners must design and conduct an experiment to determine which unknown liquid has a greater density based on basic information about the liquids and containers. Students are given specific materials to work with.
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Friction of a Block Weight

For Teachers 5th
Fifth graders hypothesize and design an experiment to study the relationship between a block weight and the number of washers it takes to pull a block across various surfaces. Students graph results and apply their findings to a...
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Velocity

For Teachers 5th - 8th
Young scholars determine the average speed of a toy car as it travels six different distances set up by Students. Three trials are done for each distance. The only requirements is that the longest distance must be at least three times...
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Starch and Sugar Testing 2

For Teachers 5th - 8th
Students design and conduct an experiment to determine which of three solutions contain starch or sugar. This task assess students' ability to make simple observations, design simple experiments, utilize indicators, and make generalized...
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Blue

For Teachers 5th - 8th
Students follow directions for a simple chemical experiment. They use the appropriate tools and techniques to gather, analyze, and interpret data. Students identify a substance that has characteristic properties, such as density, a...
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Heating Crystals

For Teachers 5th - 8th
Students examine the effects of heating on various crystals. They answer questions in the observation category which assess their ability to use a variety of senses to observe data in a certain way- a scientific way.

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