Curated OER
Determining Percent Composition
In this percent composition worksheet, high schoolers calculate the percent composition of compounds using their formula masses and masses of individual elements. They solve nine problems including calculating percent composition,...
Virginia Department of Education
Formulas and Percent Compositions of Ionic Compounds
Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...
Science Geek
Percent Composition, Empirical and Molecular Formulas
Help your pupils understand when empirical becomes molecular. The lesson presentation demonstrates the connection between empirical formulas and molecular formulas. Then, given percent composition, the lesson demonstrates the steps to...
Curated OER
Unit 0 Review - Measurement Lab Equipment
Review questions like these can be used in your biology, chemistry, physics, or earth science classes! They assess scientists' understanding of laboratory measurement tools including graduated cylinders, thermometers, and balances. They...
Curated OER
Are Our Chemical Measurements Accurate or Precise?
What is the difference between accuracy and precision? This worksheet has students define the terms accuracy and precision, and compare bulleye diagrams to find examples of both. Students analyze given data and determine the accuracy and...
College Board
2015 AP® Physics 1 Free-Response Questions
It's rare for even 40 percent of test takers to pass the AP Physics 1 exam. Improve those odds for young scientists with the help of actual free response questions covering topics from free body diagrams to velocity. The College Board...
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
Unit 2 Quantities Review
In this quantities in chemistry worksheet, students solve 13 review problems about percent composition, significant digits, the mole, simple and molecular formulas, balancing equations, stoichiometry, limiting reagents and percent yields.
American Chemical Society
Energy Foundations
Only 10 percent of an incandescent bulb's energy is used to create light; the remaining 90 percent is heat. In the unit of activities, young chemists examine energy through hands-on activities, videos, discussions, and...
Curated OER
Formulas from Masses
In this mass worksheet, students determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.
Curated OER
What Can We Measure About Chemicals?
In this measurement worksheet, students read about accuracy of measurements as compared to the precision of measurements. Students answer four precision problems and solve four accuracy problems.
Curated OER
Where's the Water? Stream Side Science
After a whole-class discussion of water reservoirs, ten liters of water are given to each lab group to represent Earth's total amount of water. They divide the water into smaller containers, each representing one of those reservoirs. The...
Curated OER
Measurements and Their Uncertainty
In this measurements activity, students fill in 10 blanks, determine if statements are true or false, match 6 terms with the appropriate definitions, and solve 2 problems. Topics include converting to scientific notation, identifying...
Curated OER
Working Out Empirical Formulae
In this chemical compounds worksheet, students learn the steps for determining the empirical formula of a compound and then complete 3 problems.
Curated OER
Coal Supply and Demand
A hands-on simulation perfect for an economics lesson, young learners investigate the availability of different sources of natural energy (coal, natural gas, oil, solar, and nuclear) and how this availability affects their cost....
Curated OER
Finding Concentration
In this determining concentration activity, students are given the equations to find the concentration of a solution in grams per milliliter, to determine the concentration in parts per million, to determine percent mass and percent...
Curated OER
Osmosis
Fifth graders explore osmosis as they watch organisms divide. In this organism lesson, 5th graders use potatoes to experiment with the effects of salty water in the body. Students discuss what osmosis is and record what...
Curated OER
Bending Light Waves to Magnify
In this magnification worksheet, learners read about how lenses magnify images and how to determine the magnification of an image. Students divide ten by the focal length which is found to be the measurement from the center of the lens...
Curated OER
The Water Planet
Students use NASA photographs and hands-on activities to compare the amounts of land and water on our planet. They discover that the world has five oceans and that they cover seventy percent of Earth's surface. Students learn how this...
Curated OER
Sugar Solutions
Seventh graders study biological systems and how they reach equilibrium. In this system balance lesson students divide into groups and complete an osmosis lab activity.
Houghton Mifflin Harcourt
Random Samples: Estimating Population
With this estimating populations assignment, your class will learn about taking random population samples and calculating the average number of species in the samples to estimate the total population. Students use the given data to find...
Virginia Department of Education
Isotopes
Lead your class through the amazing world of isotopes as they investigate the various properties they contain and further understand their respective location on the periodic table. They explore half-lives and radioactivity as each...
Curated OER
The "Heart" of the Problem
Students create an exercise and nutrition program. In this interdisciplinary instructional activity, students use calculations of exercises plus their corresponding effects on the body and nutritional values of food to derive a health...
Curated OER
How Much Ocean?
In this ocean worksheet, students are given a map of the world and they predict the amount of water that covers the Earth's surface. They count the total number of squares on the given map that represent the water and they land and they...