In this activity, you will use a computer model to observe how natural selection works when selection pressures for a trait are both positive and negative.
This interactive simulation introduces circuits with resistors in parallel and presents you with questions regarding voltage drops across resistors and currents through them in such circuits. It also covers the calculation of the effective resistances of a set of resistances in parallel. Use a digital multimeter to measure voltage drops and currents, including those situations […]
This interactive simulation guides you through the wiring of the standard breadboard and presents you with questions regarding voltage drops and currents in series resistive circuits. Use a digital multimeter to make accurate measurements, including in those situations in which the actual resistance is not precisely what the color coding of the resistor would suggest, […]
Our agricultural system is made up of interconnected resources. The availability of these resources affects how much food we can produce.In this module, you will explore the resources that make up our agricultural system in order to answer the question: can we feed the growing population? Food production is faced with an ever-growing number of […]
This sequence is an introduction to plate tectonics using evidence from topographical maps, earthquake location and depth, and volcano location. In this sequence, you will use the Seismic Explorer model to investigate patterns of earthquake data and to infer the relative motion of adjacent tectonic plates.
In GeniGames, students investigate genes, alleles, traits, meiosis and patterns of genetic inheritance in a fanciful and amusing game world while also exploring authentic genetics. Using a dragon genome based on accurate, real world genetics, students make intentional breeding decisions with phenotypically and genotypically different dragons.
Lead author: Erin Cothran, Hudson High School, Hudson, MA, with contributions from Dan Damelin, The Concord Consortium.
Lead author: Ann Novak, Greenhills School, Ann Arbor, MI, with contributions from Joe Krajcik, CREATE for STEM at MSU.
In this unit, students will explore the issue of ocean acidification by investigating the effects of increasing carbon dioxide concentrations in air and water, researching the impacts of acidity on living organisms, and developing and revising models of how these components interact. By the end of the unit, models will be used to support student […]
This sequence of five activities is part of a research project to figure out how to best bring science practices into school. The goal is to help you understand how real science works and become more proficient at designing and running your own experiments.