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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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Barometer Investigation
Students construct a barometer to use in an experiment that they design to measure the air pressure on a daily basis. These observations of air pressure allow students to determine how weather is affected when a storm is approaching and...
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Coffee Cooling
Pupils explore the factors that affect how long coffee stays hot. They develop a question and a testable hypothesis for one factor such as initial temperature or size of opening of the container. Then they design and conduct an...
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Friction Force
High schoolers investigate friction force on a variety of objects such as bricks and cardboard boxes. They use a force probe to collect data on the changes in force required to drag the objects across a variety of surface types.
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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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Catalase Enzyme
Pupils 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 activity....
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Water-Holding Capacity
Students design and conduct an experiment to compare the water-holding capacity of sand, soil, and moss. They measure the change in weight for each material after adding the same amount of water to each material.
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Magnifiers
Students describe how several different objects magnify a provided sentence and decide if they are good magnifiers or not. They then write a sentence describing two properties an object must have in order to be a good magnifier.
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Unknown Liquids
Students 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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Density of a Sinker
Eighth graders determine the density of a sinker by first finding the mass and then the volume using a graduated cylinder. Students must write the procedure they use to find the volume of the sinker then apply their data to follow-up...
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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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Exploring the MapleCopter
Study explore the motion of maple seeds and design experiments to explain their spinning flight patterns. They make observations, explain ideas of motion, use models, analyze previous reports and experiments, identify relevant factors...
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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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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.
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Discovering the Problem of Solid Waste
Learners catagorize the types of garbage from going through a trash can provided by their teacher. They then chart the items on a graph and propose a solution to reduce the amount of garbage.
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Sand in Bottles
Eighth graders calculate the speed of bottles as they roll down a ramp with varying amounts of sand inside. Using their data, 8th graders estimate speed of three labeled bottles with different amounts of sand and compare those results...
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Sopay Water
Tenth graders design and conduct an experiment to explore the use of several substances in removing soap from water. During this activity they work with a lab partner. They keep their own individual lab notes, after they finish, they...
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Acid and Base Testing 2
Students design and conduct an experiment on unknown solutions after studying descriptions of indicators and the way in which they identify acids and bases. Students must gather, organize, and analyze data as well as make inferences...
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Density and Buoyancy Experimental Design
Students must plan, design, and conduct an experiment that answers the scientific question: "Come up with a question that addresses the factors (variables) of the water and its effect on whether an object floats or sinks."
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Rising Waters
Fourth graders rank balls by size from smallest to largest and from lightest to heaviest and then by how much they made the water rise. They then discuss why certain balls make the water rise higher than do other balls.
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Packing Materials
Students observe the effects of water on four different packing materials to determine which ones are more soluble. They then decide which material would be a good packing material to use for the environment and which may be a bad...
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Insulators
Students design and carry out an investigation to test which materials is the best insulator: they predict which way heat energy flows in a system and analyze the flow of energy in a system from one point to another and from one form to...
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Changes in Pulse Rate
Eighth graders practice making observations and collecting data after determining a baseline pulse rate then collect data on the changes in that rate with exercise. Students must organize their data and analyze their observations.