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Buffers, titrations, and solubility equilibria
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We can combine our knowledge of acids and bases, equilibrium, and neutralization reactions to understand buffers and titrations. Solubility equilibria will build on concepts from solubility, precipitation, and equilibrium.

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Chemistry
Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Khan Academy
Date Added:
11/17/2020
Build and Test a Conductivity Probe with Arduino
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Educational Use
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Student groups construct simple conductivity probes and then integrate them into two different circuits to test the probe behavior in solutions of varying conductivity (salt water, sugar water, distilled water, tap water). The activity culminates with student-designed experiments that utilize the constructed probes. The focus is to introduce students to the fabrication of the probe and expose them to two different ways to integrate the probe to obtain qualitative and quantitative measurements, while considering the application and utility of a conductivity probe within an engineering context. A provided handout guides teams through the process: background reading and questions; probe fabrication including soldering; probe testing and data gathering (including circuit creation on breadboard); probe connection to Arduino (including circuit creation and code entry) and a second round of testing and data gathering; design and conduct their own lab experiments that use the probes; online electrolyte/nonelectrolyte reading, short video, comprehension check and analysis questions.

Subject:
Career and Technical Education
Chemistry
Physical Science
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Iulian Irimina
Phillip Cook
Date Added:
02/17/2021
The Building Blocks of Matter
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Educational Use
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Students learn about atoms and their structure (protons, electrons, neutrons) — the building blocks of matter. They see how scientific discoveries about atoms and molecules influence new technologies developed by engineers.

Subject:
Chemistry
Physical Science
Science
Material Type:
Lesson
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brian Kay
Daria Kotys-Schwartz
Janet Yowell
Malinda Schaefer Zarske
Date Added:
02/17/2021
Building Simple Machines: A Glass of Milk, Please
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In this video segment adapted from ZOOM, the cast shows how the 34 steps in their Rube Goldberg invention use everything from gravity to carbon dioxide gas in order to accomplish one simple task: pouring a glass of milk.

Subject:
Chemistry
Engineering
Physics
Science
Material Type:
Activity/Lab
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
02/20/2004
Building Simple Machines: Plant Quencher
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Educational Use
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In this video segment from ZOOM, Jillian explains how her simple machine uses marbles, levers, flowing sand, and a spinning wheel to water a plant.

Subject:
Chemistry
Engineering
Physics
Science
Material Type:
Activity/Lab
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
02/20/2004
Building a Protein
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This is a hands-on activity to assess the students understanding of peptide and disulfide bonds formed during protein synthesis. Students demonstrate the process of dehydration synthesis by combining amino acids through peptide bonds creating molecules of water, and one protein amino acid strand. It can also be used to assess students understanding of the process of translation.

Subject:
Chemistry
Life Science
Science
Material Type:
Activity/Lab
Assessment
Lesson Plan
Simulation
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Pedagogy in Action
Date Added:
02/24/2021
Building the Channel Tunnel
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Educational Use
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How do you build a tunnel 32 miles long -- under water? This video segment adapted from Building Big, follows the construction of the Channel Tunnel (nicknamed "Chunnel"), the engineering wonder that connects England to France.

Subject:
Chemistry
Engineering
Physics
Science
Material Type:
Activity/Lab
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
01/22/2004
CK-12 Physical Science Concepts for Middle School
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CC BY-NC-SA
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CK-12 Physical Science Concepts covers the study of physical science for middle school students. The 5 chapters provide an introduction to physical science, matter, states of matter, chemical interactions and bonds, chemical reactions, motion and forces, and the types and characteristics of energy.

Subject:
Chemistry
Science
Material Type:
Textbook
Provider:
CK-12 Foundation
Provider Set:
CK-12 FlexBook
Date Added:
11/01/2012
COSI Connects
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COSI Connects launches audiences of all ages into a universe of science through online videos, activities, plus a free mobile app that enables science exploration even when offline. COSI Connects is helping to bridge the digital divide, promote digital literacy, and address critical science education needs simultaneously. This repository of activities and videos is for learners of all ages and is a great supplement to at-home learning or for use in the classroom.

Subject:
Biology
Chemistry
Earth and Space Science
Engineering
Environmental Science
Human Anatomy and Physiology
Life Science
Physical Geology
Physical Science
Physics
Science
Material Type:
Activity/Lab
Catalog
Author:
COSI
Date Added:
04/29/2021
Calibrating a Pipettor
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CC BY-NC-SA
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Spreadsheets Across the Curriculum activity. In advance of an actual lab activity, students virtually simulate the calibration of a laboratory micropipettor. QL: Accuracy and precision.

Subject:
Biology
Chemistry
Mathematics
Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Pedagogy in Action
Author:
William Thomas
Date Added:
02/24/2021
Calorimetry
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Educational Use
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Do you know how many calories are in a macadamia nut? This video segment highlighting a Calorimetry experiment will give you the answer.

Subject:
Chemistry
Physics
Science
Material Type:
Lesson
Provider:
PBS LearningMedia
Author:
New York Network
WNET
Date Added:
05/14/2010
The Candle Icebreaker
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CC BY-NC-SA
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Small groups of students examine a candle to consider its chemical properties. Class discussion follows to consider macro vs. molecular events, energy, phase changes, etc.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Provider:
Science Education Resource Center (SERC) at Carleton College
Provider Set:
Pedagogy in Action
Author:
Dave Blackburn
Date Added:
02/24/2021
Carbon-Fiber Car of the Future
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In this video segment adapted from NOVA, find out how cars made of a material stronger than steel and half the weight can help combat climate change.

Subject:
Chemistry
Engineering
Environmental Science
Physics
Science
Material Type:
Lecture
Provider:
PBS LearningMedia
Author:
The William and Flora Hewlett Foundation
WGBH Educational Foundation
Date Added:
08/26/2008
The Car with a Lot of Potential
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Educational Use
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Working in teams of three, students perform quantitative observational experiments on the motion of LEGO MINDSTORMS(TM) NXT robotic vehicles powered by the stored potential energy of rubber bands. They experiment with different vehicle modifications (such as wheel type, payload, rubber band type and lubrication) and monitor the effects on vehicle performance. The main point of the activity, however, is for students to understand that through the manipulation of mechanics, a rubber band can be used in a rather non-traditional configuration to power a vehicle. In addition, this activity reinforces the idea that elastic energy can be stored as potential energy.

Subject:
Chemistry
Engineering
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brian Kay
Daria Kotys-Schwartz
Janet Yowell
Malinda Schaefer Zarske
Date Added:
09/18/2014
Catalysts
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There are two types of catalysis reactions: homogeneous and heterogeneous. In a homogeneous reaction, the catalyst is in the same phase as the reactants. In a heterogeneous reaction, the catalyst is in a different phase from the reactants. This activity addresses homogeneous catalysis.

Subject:
Chemistry
Science
Material Type:
Data Set
Diagram/Illustration
Provider:
Concord Consortium
Provider Set:
Concord Consortium Collection
Author:
The Concord Consortium
Date Added:
12/11/2011
Caves and Karst
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Educational Use
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This interactive resource adapted from the National Park Service presents the key concepts of cave and karst systems, including how and where they form, different types, and various cave environments.

Subject:
Chemistry
Earth and Space Science
Environmental Science
Physics
Science
Material Type:
Activity/Lab
Diagram/Illustration
Interactive
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
12/17/2005
Centripetal Force: Pulling Cs and Gs
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Educational Use
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In this interactive activity from NOVA, discover how centripetal force can affect you when riding in a car or flying at high speeds in a fighter jet.

Subject:
Chemistry
Physics
Science
Material Type:
Activity/Lab
Interactive
Provider:
PBS LearningMedia
Author:
National Science Foundation
WGBH Educational Foundation
Date Added:
02/20/2004