Virginia Department of Education
Partial Pressure
At some point, everyone has been under pressure—even Dalton! Explore Dalton's law of partial pressures with young chemists as they measure the volume of air extracted from a sample compared to its original volume. Class...
Virginia Department of Education
Average Atomic Masses
Facilitate learning by using small objects to teach the principles of atomic mass in your science class. Pupils determine the average mass of varying beans as they perform a series of competitive experiments. They gather data and...
Royal Society of Chemistry
Gas Laws: Converting Units
Given a choice between playing a game or completing a worksheet, which do you think your class would choose? Tap into their reasoning skills with a series of puzzles focused on gas laws unit conversion. You can use the resource online or...
Royal Society of Chemistry
Volumetric Apparatus
Can your class tell the difference between a burette and a pipette? Develop their lab apparatus knowledge using a series of puzzles. The online activity associates the name, image, and sizes of burettes, pipettes, volumetric flasks, and...
Curated OER
Scientific Notation Make-Up Test
In this scientific notation learning exercise, students convert from standard notation to scientific notation and from scientific notation to standard notation.
Santa Monica College
Introducing Measurements in the Laboratory
We use basic units of measurement to break down things and communicate clearly. The first lesson in an 11-part series teaches the proper way to measure various items. It starts simply with measuring the dimensions and areas of geometric...
Creative Chemistry
Titration Calculations
In this titration learning exercise, students calculate the moles of acids in a given amount of solution, balance equations, and calculate the concentrations of given acids. There are 10 problems to solve.
Curated OER
Matter and Energy-Scientific Notation
In this scientific notation worksheet, students are given ten numbers in common form and they convert them to scientific notation. They also are given ten numbers in scientific notation that they convert to common notation.
Curated OER
Worksheet 2-2 Stoichiometric Tools
In this stoichiometry worksheet, students solve a variety of problems including finding empirical and molecular formulas, determining molarities of solutions, determining molecular weights of compounds and calculating the percent mass of...
Curated OER
Evaluating Secondary Physical Constants
In this physical constants worksheet, students use fundamental physical constants of nature to determine "secondary" constants. This worksheet has 7 problems to solve.
Curated OER
Ka and Kb Calculations
In this solutions worksheet, pupils calculate the pH of given solutions or calculate the Ka or Kb for chemical compounds. This worksheet has 11 problems to solve.
Curated OER
pH and pOH Calculations
In this acids and bases instructional activity, students calculate the pH or pOH of given amounts of different chemical compounds. This instructional activity has 13 problems to solve.
Curated OER
Calculating Rates
In this rates worksheet, learners determine the rate of production or consumption for given reactions. Students write chemical equations in complete ionic form or net-ionic form. This worksheet has 6 problems to solve.
Curated OER
Mole Stuff
In this moles worksheet, students practice calculating the number of moles based on grams of a compound. Students use the rate of reaction equation to determine the rates of specific reactions. This worksheet has 10 problems to solve.
Simon Fraser University
Chem1 Virtual Textbook: Significant Figures and Rounding Off
As part of a larger site called "Getting started in Chemistry," this site examines significant figures and claims to teach the user "how to avoid telling lies with numbers."
CK-12 Foundation
Ck 12: Chemistry: Significant Figures
[Free Registration/Login may be required to access all resource tools.] Provides a definition of significant figures and lists rules for proper designation of values.
CK-12 Foundation
Ck 12: Physical Science: Significant Figures
[Free Registration/Login may be required to access all resource tools.] Determining significant figures and rounding.
Frostburg State University
General Chemistry Online: Rules for Significant Digits
This site from General Chemistry Online provides a mnemonic device you may not have seen to help remember the rules for significant digits called the Atlantic-Pacific Method. Also includes a comparison between this rule and the...
California State University
Csudh: Chemistry: Significant Figures
An interactive exercise drill regarding significant figures.
Other
Chemistry Land: Significant Figures and Fuzzy Numbers
Course website, developed by a community college instructor, uses riddles, real-world examples, colorful pictures, and explanatory text to introduce learners to the concept of significant figures in science. With a selection of...
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Rounding and Significant Figures: Audio Book
This audio book, narrated by author Mark Bishop, describes how to determine significant figures in chemical calculations. Many examples are given to help figure out how to round the answers. Also find links to tutorials and power points...
Crescent Public Schools
The Internet Science Room: Chemistry Class Introduction
This introduction to chemistry class reviews some major concepts to help prepare students for a high school chemistry course.
Simon Fraser University
Chem1 Virtual Textbook: Getting Started in Chemistry
With the subtitle, "stuff you should know before delving too far into Chemistry," this site examines a range of six topics to provide the user with a broader understanding of chemistry.
CK-12 Foundation
Ck 12: Uncertainty in Measurements
[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will learn to distinguish between accuracy and precision in measurements and to also calculate the percent error of a...