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1-24 of 934 results for Materials Submitted by Barbra Bied Sperling

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

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

In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by... see more

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

This printable resource provides information on the marine mammals found along the U.S. east coast from North Carolina to... see more

Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written... see more

Experiment with force and pressure by building a balloon rocket. When launched, the balloon will run a track wherever you... see more

In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a... see more

EducaNext provides access to thousands of materials on various subjects of relevance to teaching and learning at the... see more

In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a... see more

In this activity about gravity (page 6 of the PDF), learners will come to understand how all objects will fall at the... see more

Four teaching units show how NASA satellites measure ocean productivity. Topics cover: marine food web from producers to... see more

This guide lists and reviews 61 web sites with catalogs of astronomical images that are useful for both formal and... see more

In this activity (on page 6 of the PDF), learners plot the path of the sun's apparent movement across the sky on two... see more

While working in groups to facilitate peer tutoring, students manipulate a hands-on, physical model to better comprehend... see more

This networked laboratory simulation provides an environment in which students can select from hundreds of standard... see more

Explore Mars with a click of your mouse! Click on the image of Mars, and it will be redrawn with the selected point at... see more

Although few weather phenomena have the ability to affect weather on a global scale, the jet streams are one such... see more

The purpose of this website is to make a collection of web acessable original documents, reviews, and online links to... see more

This image gallery showcases more than 100 meteorwrongs (objects misidentified as meteorites). There are explanations of... see more

This website is part of National Geographics Xpeditions Hall and includes lesson plans and activities related to the... see more

This case study uses the example of Pluto: how do we determine what a planet is? The lesson compares orbital parameters... see more

Created by Paul Falstad, this page compares the distance/magnitude/size of various objects or constants. This includes... see more

Scientists have been looking for extra-solar planets for decades, but only recently, with better equipment and improved... see more