CK-12 Foundation
Ck 12: Physical Science: Endothermic Reactions
[Free Registration/Login may be required to access all resource tools.] Definition of an endothermic reaction, the role of energy, and examples of endothermic reactions.
BBC
Bbc: Gcse Bitesize: Exothermic and Endothermic Reactions Aqa
This lesson focuses on Exothermic and Endothermic Reactions. Exothermic reactions transfer energy to the surroundings. Endothermic reactions take in energy from the surroundings. It provides links to a video and a test.
Science Education Resource Center at Carleton College
Serc: Chemical Reactions: Investigating Exothermic and Endothermic Reactions
In this 9th grade physical science guided inquiry, students will work in pairs to discover the indicators of chemical reactions. Each pair of students is assigned either an exothermic or endothermic reaction. Based on their observations,...
Other
University of Siegen: An Endothermic Reaction
This resource provides information on a rather interesting spontaneous endothermic reaction, involving cobalt (II) chloride and thionyl chloride.
American Chemical Society
Inquiry in Action: Change in Temperature: Endothermic Reaction
In this activity, students will observe another aspect of a chemical change which is a change in temperature. In this reaction, students will experiment with an endothermic reaction.
TeachEngineering
Teach Engineering: Reaction Exposed: The Big Chill!
Students investigate the endothermic reaction involving citric acid, sodium bicarbonate and water to produce carbon dioxide, water and sodium citrate. In the presence of water [H2O]; citric acid [C6H8O7] and sodium bicarbonate [NaHCO3]...
Science Struck
Science Struck: Endothermic Reaction Examples
Explains what an endothermic reaction is and gives four everyday examples.
University of Minnesota
Endothermic Reaction of Sodium Bicarbonate With Hydrochloric Acid
Here are the lab instructions for a classic endothermic reaction. This is NOT a try-it-at-home experiment.
Science Buddies
Science Buddies: Project Ideas: Cold Pack Chemistry: Where Does the Heat Go?
This science fair project shows you what you need to make an endothermic reaction, the coldness of which is governed by the amount of ammonium nitrate used. The Science Buddies project ideas are set up consistently beginning with an...
Khan Academy
Khan Academy: Test Prep: Mcat: Chemical Processes: Thermochemistry: Endothermic vs. Exothermic Reactions
Using an illustrated example, the difference between an endothermic and an exothermic reaction is described. The concept of enthalpy, or heat energy change, is explained, and the energy diagrams of reactions are presented.
CK-12 Foundation
Ck 12: Biology: Energy and Biochemical Reactions
[Free Registration/Login may be required to access all resource tools.] Covers the role of energy in chemical reactions.
Other
Msd Hyper Glossary: Exothermic and Endothermic
This site from the Interactive Learning Paradigms discusses and defines exothermic and endothermic reactions. Further information is given under the definitions along with several links to additonal information. An interesting site.
University of Minnesota
University of Minnesota Outreach: Endothermic and Exothermic Reactions
A nice juxtaposition of endo- and exothermic reactions. Outlines two demonstrations. Barium hydroxide, sodium acetate, ammonium nitrate, ammonia.
CK-12 Foundation
Ck 12: Plix Series: Endothermic Reactions: Combustion Reactions
[Free Registration/Login Required] Use the water and carbon dioxide molecules to balance the combustion reactions, label them, and then answer one challenge about the topic.
Other
University of Siegen: Enthalpy of Solution
This resource provides a physical reaction. Hydrous and anhydrous calcium chloride react with water to produce physical exothermic and endothermic reactions.
BBC
Bbc: Gcse Bitesize: Heat Energy Changes in Chemical Reactions
This lesson focuses on heat energy changes in chemical reactions. Exothermic reactions transfer energy to the surroundings. Endothermic reactions take in energy from the surroundings. It also offers links to a video and a test.
Other
Nearpod: Endothermic & Exothermic Reactions
In this activity on endothermic and exothermic reactions, students explore chemical reactions, energy transfer, and energy diagrams.
CK-12 Foundation
Ck 12: Physical Science: Chemical Reaction Overview
[Free Registration/Login may be required to access all resource tools.] Provides an introduction to chemical reactions.
American Chemical Society
Middle School Chemistry: Energy Changes in Chemical Reactions
Students will conduct two chemical reactions: endothermic and exothermic. They will see an animation that shows that it takes energy to break bonds and that energy is released when new bonds are formed, and use that animation to explain...
Texas Instruments
Texas Instruments: Endothermic and Exothermic Reactions
In this activity, students will observe two chemical reactions. They will use an EasyTemp probe to determine the change in temperature and identify endothermic and exothermic reactions.
Other
University of Liverpool: Reactions in Everyday Life: Endothermic and Exothermic
Equations illustrating both endothermic and exothermic reactions, with energetics involved.
Sophia Learning
Sophia: Endothermic/exothermic Reactions: Lesson 4
This lesson explains the difference between endothermic and exothermic chemical reactions. It is 4 of 4 in the series titled "Endothermic/Exothermic Reactions."
Sophia Learning
Sophia: Endothermic/exothermic Reactions: Lesson 1
This lesson explains the difference between endothermic and exothermic chemical reactions. It is 1 of 4 in the series titled "Endothermic/Exothermic Reactions."
Sophia Learning
Sophia: Endothermic/exothermic Reactions: Lesson 2
This lesson explains the difference between endothermic and exothermic chemical reactions. It is 2 of 4 in the series titled "Endothermic/Exothermic Reactions."