Curated OER
"Keep it cool"
Young scholars comprehend the importance of keeping cold foods cold. They identify the proper way to install and read a fridge thermometer. Students develop the ability to maintain a clean fridge at home.
Curated OER
Smog Be Gone
Students begin the lesson by identifying greenhouse gases. In groups, they observe and record the effect of the gases on the atmosphere and the temperature of the Earth. They participate in activities that describe the role of...
Curated OER
Micro-Reaction Lab: Gas Prouducing Reactions
Students investigate single displacement or double displacement reactions. They have to identify the type of gas produced by filling in the blanks to a data and observation sheet. Also, having to be done is writing balanced equations for...
Curated OER
Planet Structure & Interior
Students compare Jupiter and Earth. In this Earth and space studies lesson, students compare the composition of Earth and Jupiter and analyze how the composition affects the rate at which the planets spin.
Other
Westminster School: Mixed Indicator Lab
A unique upper level lab showing how to take advantage of the different transition points of two indicators to determine the concentrations of two unknowns at once.
University Corporation for Atmospheric Research
Ucar: Cycles of the Earth System: Carbon Dioxide Sources and Sinks
Young scholars will use a chemical indicator (BTB) to detect the presence of carbon dioxide.
CK-12 Foundation
Ck 12: Chemistry: Recognizing Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] A tutorial full of explanations, videos, and review questions that covers chemical reaction and indicators of a chemical reaction.
Science Education Resource Center at Carleton College
Serc: Indicator Indi Gator
In this activity the students use critical thinking skills to see how liquids will change the color of an indicator.
PBS
Pbs Learning Media: Acids and Bases: Cabbage Juice Indicator
In this video segment, the ZOOM cast demonstrates how to use cabbage juice to find out if a solution is an acid or a base.
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,...
Quizlet
Quizlet: 5 Indicators of a Chemical Change
This website provides five terms about chemical change for you to practice. Audio is included for each term. This is a great study tool for test preparations.
Other
The Science House: Cabbage Juice Indicator
In this lab experiment, students will use red cabbage as an indicator to test whether a substance is an acid or a base. Teacher's notes provide background information.
US Environmental Protection Agency
Epa: Making a Natural P H Indicator
At this site you will find a step by step process for making a natural pH indicator. One of the main materials you need to have on hand is a red cabbage.
BBC
Bbc: Gcse Bitesize: Types of Chemical Reactions
This lesson focuses chemical reactions using acidic and alkaline solutions, the pH scale which measures the acidity or alkalinity of a solution, and how to use a pH meter. A link to an assessment is also provided.
Other
Siemens Science Day: Earth Science: By All Indications
A hands-on science experiment where students test acidity levels by using red cabbage extract and learn the acid levels of known and unknown liquids.
TeachEngineering
Teach Engineering: Red Cabbage Chemistry
Students take advantage of the natural ability of red cabbage juice to perform as a pH indicator to test the pH of seven common household liquids. Then they evaluate the accuracy of the red cabbage indicator, by testing the pH of the...
BBC
Bbc: Gcse Bitesize: Types of Chemical Reactions
Bases are substances that can react with acids and neutralize them. Alkalis are bases that are soluble in water. The pH scale measures how acidic or alkaline a substance is. Substances with a pH lower than 7 are acidic, those with a pH...
Frostburg State University
General Chemistry Online: Water to Wine
The molecular basis of indicator color changes. Includes Chime structures for the acid and base forms of phenolphthalein, methyl orange, red cabbage indicator, and cyanidin diglucoside.
Other
Monell Chemical Senses Center: Areas of Research: Sensation and Perception
Overview of how chemical signals from animals mark territories, identify individuals, signify social rank, and indicate reproductive and health status.
American Chemical Society
Middle School Chemistry: Carbon Dioxide Can Make a Solution Acidic
Students explain that carbon dioxide from any source reacts chemically with water to form carbonic acid. They will also be able to use the color changes of universal indicator to monitor the changing pH of a solution during a chemical...
American Chemical Society
Inquiry in Action: Color Changes With Acids and Bases
In this lab activity, students will learn how red cabbage can be used as an indicator of an acid or base by looking at its color changes.
American Chemical Society
Inquiry in Action: Neutralizing Acids and Bases
A lab activity where students will neutralize and acidic solution with a base and a basic solution with an acid by using their knowledge of a red cabbage indicator. This site includes teacher and student instruction for the lab activity...
Other
The Science House: Invisible Ink
Guidelines for a simple lab demonstration using phenolphthalein, a chemical that changes color depending on whether it is in the presence of an acid or base.
Climate Literacy
Clean: Carbon Dioxide Sources and Sinks
In this lab activity, learners use a chemical indicator (bromothymol blue) to detect the presence of carbon dioxide in animal and plant respiration and in the burning of fossil fuels and its absence in the products of plant...