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Covalent Bonding
Read the Fine Print
Educational Use
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This interactive activity from ChemThink takes a closer look at a covalent bond--how it is formed and how the sharing of two electrons can keep atoms together.

Subject:
Chemistry
Physical Science
Physics
Material Type:
Activity/Lab
Interactive
Provider:
PBS LearningMedia
Provider Set:
PBS Learning Media: Multimedia Resources for the Classroom and Professional Development
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
08/09/2007
Electroplating
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this electrochemistry activity, learners will explore two examples of electroplating. In Part 1, zinc from a galvanized nail (an iron nail which has been coated with zinc by dipping it in molten zinc) will be plated onto a copper penny. In Part 2, copper from a penny will be plated onto a nickel.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Don Rathjen
The Exploratorium
Date Added:
11/07/2004
Electrostatic Water Attraction
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners conduct a simple experiment to see how electrically charged things like plastic attract electrically neutral things like water. The plastic will attract the surface of the water into a visible bump.

Subject:
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Paul Doherty
The Exploratorium
Date Added:
11/07/2000
How Big is Small
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water. This lab asks learners to record measurements and make calculations related to volume, diameter, area, and height. Learners also convert meters into nanometers. Includes teacher and student worksheets but lacks in depth procedure information. The author suggests educators search the web for more complete lab instructions.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Eric Muller
The Exploratorium
Date Added:
11/07/2007
Illuminations on Rates of Reactions
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners investigate the speed of chemical reactions with light sticks. Learners discover that reactions can be sped up or slowed down due to temperature changes.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Eric Muller
The Exploratorium
Date Added:
11/07/2003
Molecular Menagerie
Restricted Use
Copyright Restricted
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Small molecules are chemicals that can interact with proteins to affect their functions. Learn about the structure and biological functions of various small molecules like sugar and caffeine. Also featured on the HHMI DVD, Scanning Life's Matrix: Genes, Proteins, and Small Molecules. Available free from HHMI.

Subject:
Applied Science
Chemistry
Computer Science
Education
Engineering
Health, Medicine and Nursing
Life Science
Physical Science
Physics
Material Type:
Activity/Lab
Data Set
Interactive
Lecture
Provider:
Science and Math Informal Learning Educators (SMILE)
Author:
Howard Hughes Medical Institute
Date Added:
04/17/2012
A Mole of Gas
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this two-part activity, learners use everyday materials to visualize one mole of gas or 22.4 liters of gas. The first activity involves sublimating dry ice in large garbage bag. The second activity uses plastic bottles.

Subject:
Chemistry
Physical Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Eric Muller
The Exploratorium
Date Added:
11/07/2005
Paper Bridges
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners build bridges using paper and explore how much weight each bridge design can support. There is an element of surprise, which increases learners' interest in the physics, when they discover just how strong they can make this seemingly flimsy material. This lesson guide includes background information, discussion questions, demonstration ideas and extensions.

Subject:
Applied Science
Architecture and Design
Material Type:
Activity/Lab
Provider:
Exploratorium
Date Added:
12/08/2004
Paper making
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners explore the question "What is paper?" Learners discover the processes and materials required to make paper while experimenting with different recycled fibers and tools.

Subject:
Physical Science
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Don Rathjen
Ellen Koivisto
The Exploratorium
Date Added:
10/31/2012
Plot the Dot
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this activity, learners work in groups to determine the mass and volume of four samples: glass marbles, steel washers or nuts, pieces of pine wood, and pieces of PVC pipe. Learners then plot the data points on a large class graph of mass vs. volume to discover that data points for a particular material form a straight line, the slope of which gives the density of the material.

Subject:
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
Exploratorium
Author:
Don Rathjen
The Exploratorium
Date Added:
11/07/2009
STEM in 30: Earth Day: A View from Above
Conditional Remix & Share Permitted
CC BY-NC
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In this webcast we look at the beginnings of Earth Day and how a better understanding of our place in the universe has evolved through photographic scientific discoveries

Subject:
Physical Science
Material Type:
Activity/Lab
Provider:
National Air and Space Museum
Author:
National Air and Space Museum
Date Added:
09/04/2015