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1-24 of 1,940 results for Materials Submitted by Barbra Bied Sperling

The issue-focused, peer-reviewed article demonstrates how ecotourism creates an impact on natural ecosystems but more... see more

In this activity, learners use microarray technology to determine which genes are turned on and off at various points in... see more

Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the... see more

Add different salts to water, then watch them dissolve and achieve a dynamic equilibrium with solid precipitate. Compare... see more

This java applet (and accompanying material) is designed to simulate an experiment to find the effect of varying the... see more

The Virtual Courseware Project produces interactive online simulations to help enhance the learning and teaching of... see more

The AAAS (American Association for the Advancement of Science Atlas of Population and Environment is an important... see more

Using toothpicks, straws, or tubes of rolled up newspaper, learners create 3-dimensional models to illustrate the basic... see more

This Environmental Protection Agency (EPA) site focuses on the science and impacts of global warming or climate change,... see more

The issue-focused, peer-reviewed interview addresses how ecologists and economists increasingly work together to inform... see more

The issue-focused reprint explains how natural ecosystems produce services upon which we are dependent. For example,... see more

This activity (on page 2 of the PDF) is a full inquiry investigation into how hairs from a crime scene are matched to... see more

This is the first semester in a two-semester introductory course focused on current theories of structure and mechanism... see more

In this quick activity, learners explore how blubber protects animals from the cold by making a "blubber mitt." Using... see more

This Starting Point teaching module highlights a case study of Malama Keone'o'oi. Students will learn techniques for... see more

An applet for displaying chemistry spectral information (NMR, MS, IR, UV) encoded in JCAMP-DX format, with hyperlink... see more

Learners observe a model of a cell and its chromosomal DNA made from a plastic egg and dental floss. Use this model to... see more

The National Geophysical Data Center (NGDC), provides a series of data sets and slides related to natural disasters.... see more

The National Marine Sanctuary Program identifies, designates and manages areas of the marine environment of special... see more

A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a... see more

The purpose of this resource is to select 15 km x 15 km Land Cover Sample Sites.

This course studies the development of modern science from the seventeenth century to the present, focusing on Europe and... see more

Find the the complete state from any combination of two independent properties. To enter a property simply click on the... see more

This computer interactive lets you explore the effect of changing the number of colors and resolution of a picture. You... see more