Scholastic
Scholastic: Study Jams! Science: Matter: Acids and Bases
Studying acids and bases? Look no further for an entertaining video to help understand how they work. Check comprehension with the test.
Chem4kids
Chem4 Kids: Reactions: Names to Know
Acids and bases are scaled. These facts are good knowledge to have when classifying solutions as acidic, basic, or neutral.
University of Illinois
University of Illinois Extension: Knowing Your World: Acid Precipitation
A brief article defining "acid precipitation," followed by directions for a hands-on demonstration which "show[s] the direct effect of acid water on plant growth."
TeachEngineering
Teach Engineering: Not So Neutral Views
Students are introduced to acids and bases, and the environmental problem of acid rain. They explore ways to use indicators to distinguish between acids and bases. Students also conduct a simple experiment to model and discuss the...
CK-12 Foundation
Ck 12: Biology: Acids and Bases in Biology
[Free Registration/Login may be required to access all resource tools.] Introduction to acids, bases, and pH.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Different Bases
Find a quick, concise explanation of how different bases work. A specific example is given for expressing numbers in base 3 and clearly explained.
CK-12 Foundation
Ck 12: Chemistry: Names and Formulas of Bases
[Free Registration/Login may be required to access all resource tools.] Covers names and formulas of bases.
CK-12 Foundation
Ck 12: Physical Science: Properties of Bases
[Free Registration/Login may be required to access all resource tools.] What a base is and its properties and uses. How to detect and measure the strength of bases.
US Environmental Protection Agency
Epa: Measuring Soil P H
This site has an experiment to find out how to measure the pH of your soil. The soil pH is an important condition that can affect the health of plants and animals.
US Environmental Protection Agency
Epa: Soil Buffering Experiment
Use this site to explore the experimentation process of "Soil buffering."
US Environmental Protection Agency
Epa: Determining the P H of Common Substances
In this acid rain experiment the students will be "determining the pH of common substances." This is a great lesson plan for an experiment.
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.
US Environmental Protection Agency
Epa: Observing Buffers in Lakes, Ponds, and Streams
Explore buffers in lakes, ponds, and streams. "In this experiment, you will observe the effects of limestone on the acidity of water."
US Environmental Protection Agency
Epa: Measuring P H Experiment
This is an activity that deals with acid rain. "This experiment will illustrate how to measure the approximate pH of chemicals in water using a pH indicator." It is easy to follow the comprehensive set of directions.
Purple Math
Purplemath: Solving Exponential Equations: Solving From the Definition
This Purple Math site has many examples of exponential equations, without using logarithms.
American Geosciences Institute
American Geosciences Institute: Earth Science Week: How Can You Test Your Soil?
As a citizen scientist, students use a soil test kit to find out how much of each type of chemical is in the local soil.
Khan Academy
Khan Academy: Algebra Ii: Solve Exponential Equations Using Logarithms
Solve exponential equations that have 2 or other numbers at the base of the exponential term. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Alabama Learning Exchange
Alex: Acids and Bases Lesson/lab
This lesson will allow learners to perform pH tests that determine if various solutions are acids or bases (cognitive). Students will test common household solutions such as water, vinegar, milk, and orange juice use pH indicator strips....
CK-12 Foundation
Ck 12: Physical Science for Middle School
This digital textbook covers core physical science concepts and includes interactive features, real world examples, and videos.
CK-12 Foundation
Ck 12: Chemistry for High School
This digital textbook covers core chemistry concepts and includes interactive features, real-world examples, and videos.
Oklahoma State University
Oklahoma State University: Acid Base Overview
Beginning with the example of the hydrangea, this page gives a good overview of acid-base chemistry.
Shodor Education Foundation
Shodor: Acid Base Chemistry
This Shodor Education Foundation page has a nice look at the major theories of acids and bases in less than one page. There are very simple defintions.
Purdue University
Purdue University: Calcium Hydroxide Crystal Structure
A picture of the crystal structure of calcium hydroxide. Additional plug-in required.
PBS
Pbs Teachers: Soda Bottle Boat Experiment
Use the chemical reaction that occurs when mixing a base (baking soda) with an acid (vinegar) to turn a plastic soda bottle into a jet boat.