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Am I Neutral? pH Properties in Soil
Pupils participate in a science lab to determine the pH of three different soil samples. Students conduct an experiment by creating a question, a hypothesis and then an investigation of soil samples. Then they compare colors apprearing...
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Physical vs. Chemical Change Lab
Students recognize both a physical and chemical change in different substances. They determine which particles actually changed into different substances, and explain if it represented a physical or a chemical change.
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What Does Waste Do to a River?
Students develop a graphic way of visualizing the concept of a million by utilizing what had happened to the Nashua River due to the dumping of raw sewage in 1962.
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Density lab
Students relate the concept of density in relation to the rocks that make up the Earth. They determine the density of various rock specimens and answer assessment questions.
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Towel Testing
Students examine how to design and implement experiments. For this paper towel experiment lesson students test the strength of paper towels.
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MEANINGFUL METRICS with DRAMATIC DEMONSTRATIONS
Tenth graders study the metric system. In this metric lesson students complete a lab activity and several metric worksheets.
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Efficiency Means Getting More for Less
Students measure water and make predictions about efficiency.
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Effects of Nitrate and Phosphate Changes on the Growth of Algae
Learners determine the effects of an increase of the amount of nitrate and phosphate levels on the growth of algae. the development of a hypothesis is encouraged and students proceed to a conclusion based on their results.
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Is It Safe To Go In?
Students examine acceptable levels of toxins in swimming areas. Working in groups of four, students dilute a salt or sugar solution to 1 part per 1,000,000 (ppm) solution. Students taste test their diluted liquids and record at which...
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Selecting Soil Organisms in Compost
Students conduct an experiment to demonstrate that many of the enzyme systems needed to break down society's wastes exist in nature among the decomposers in a compost pile. They culture compost bacteria on starch agar to examine the...
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Selecting Soil Organisms in Compost
Students demonstrate that many of the enzyme systems needed to break down--and therefore clean up-society's wastes already exist in nature among the decomposers. They select the best starch-munching organisms by altering the environment...
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Frozen Water Before? I'm Sure You Have; But I Bed You've Never Frozen Salt Water! Water!!
High schoolers examine what happens to salt water when it freezes. In groups, they measure density and salt concentrations in different samples of water and record its freezing time. They discuss the relationship between water density...
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Get Down With Density
Students define density and observe that things that are less dense than water will float. Students find the density of copper, iron and aluminum
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Cancer Warrior
Learners perform an experiment to determine how different salt concentrations affect the liver's ability to break down toxic hydrogen peroxide. They record and average their data which is then graphed.
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Iron Filings
Students conduct an experiment in which a solution of copper(II) sulfate is added to iron filings. They write and balance the equation for the reaction that occurs and calculate the amount of iron that reacted and the percent yield of...
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Glacial Geocaching
Eighth graders measure strike and dip of given land features and explain the difference between them. They also look at rock and mineral samples for indentification, along with calculating the density. Finally, information is analyzed...
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THE SPREAD OF AIDS
High schoolers perform a hands-on activity in which they simulate the spread of a disease such as aids. One student with unknowingly be the "carrier" of the infection and Students witness how fast it can spread.
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Magic Genie
Students observe the chemical change that occurs when sodium iodide is dropped into a flask containing 30% hydrogen peroxide. They discuss how this exothermic reaction occurred as they study the chemical equation involved in the reaction.
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What If the Reef Dies?
Students complete four activities to investigate how reef ecology can change. They perform experiments to show how sewage discharge can affect a marine ecosystem, look at substances that don't dissolve in water, examine wave action...
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Space Exploration
Fourth graders observe an empty 14 oz. clear plastic cup and measure how much water the cup can hold when it is completely full. They work in groups to fill the plastic cup, but half of the groups receive a smaller vial and the other...
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Discover Science
Students practice scientific research skills. In this lesson about science, students gain experience with the following skills: comparison, observation, identification, and data gathering. Students will go from station to station and...
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Defining Density as a Relationship
Young scholars discover that density is considered a property and that cutting an object in half does not affect its density. They examine the densities of many common substances and make connections.