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Lesson Planet

3D Pythagoras

For Students 6th - 12th Standards
Calculate one hypotenuse then repeat. The resource provides a variety of ways for finding the length of the diagonal in a prism. Using the Pythagorean Theorem, pupils find a variety of distances in 3-D figures. The distances range from...
Lesson Planet

Mole Relationship in a Chemical Reaction

For Students 9th - 12th
What do budding scientists know about moles and reactions? Using an attention-grabbing lab experiment, young scholars collect data to apply the law of conservation of mass to predict the mass of gaseous products. They examine several...
Lesson Planet

An Introduction to Qualitative Analysis

For Students 9th - 12th Standards
Compounds take on different properties than their elemental components. How can scientists determine those elements? A lab-based activity has learners explore several double replacement reactions to analyze compounds qualitatively. They...
Lesson Planet

Precipitation Reactions and General Solubility Rules

For Students 9th - 12th
The more you know, the better your predictions! Using a hands-on lab experiment, collaborative groups collect information about ionic interactions. They record data describing the precipitate of reactions and use their information to...
Lesson Planet

Liquid Chromatography

For Students 9th - 12th
A hands-on experiment applies chromatography to separate both the colors and components of grape-flavored Kool-Aid. Performing two separate activities, learners first use chromatography to divide the colors. The second activity results...
Lesson Planet

Lewis Structures, VSEPR and Molecular Modeling

For Students 9th - 12th Standards
A model is worth a thousand words. Young scholars use what they know about the structure of hydrocarbons to build Lewis dot structures and molecular models. Their tasks include multiple bonds, geometric hybrids, and various isomers.
Lesson Planet

Qualitative Analysis of Eleven Household Chemicals

For Students 9th - 12th Standards
Chemical and physical properties give compounds an identity. Learners use the identity of a compound to predict what it is. By performing different tests like solubility, flame, heat, and reactions, individuals attempt to identify an...
Lesson Planet

Kinetics of the Acid Decomposition of Thiosulfate

For Students 9th - 12th Standards
Several factors affect the rate of a chemical reaction including temperature, surface area, and concentration. Using an experimental approach, learners explore the effect concentration has on this rate while maintaining consistency with...
Lesson Planet

Synthesis of an Insoluble Ionic Salt: A Stoichiometry Experiment

For Students 9th - 12th Standards
Challenge young scientists to design their own experimental procedures. They write the procedure for properly preparing two grams of a water-insoluble ionic salt. To finish, they perform the experiment and collect data to prove their...
Lesson Planet

Chemical Equilibrium

For Students 9th - 12th Standards
We know about the light spectrum, the age spectrum, and sound spectrum, but do chemical reactions also occur on a spectrum? Young scientists experiment with partial reactions on a spectrum and observe the color changes. Then, they...
Lesson Planet

Solubility Product of an Ionic Compound

For Students 9th - 12th Standards
How do scientists determine when a solution is fully saturated? Scholars address the topic as they observe patterns of precipitation in various concentrations of ions. Using a well plate, pipette, and common chemicals, they collect data...
Lesson Planet

Comparing Activities of Selected Metals

For Students 9th - 12th Standards
Don't overreact! A simple experiment demonstrates chemical reactions as scholars mix chemical solutions and metals in a large well plate. They note all changes to the metals, solutions, precipitate, colors, and more. A full data table...
Lesson Planet

The Gelation of Guar Gum with Borax

For Students 9th - 12th Standards
Some of kids' favorite toys are the products of science experiments. Scholars follow precise measurements to mix and create their own slime and Play-Doh. They observe the changing textures and the chemical reactions throughout the...
Lesson Planet

Determination of the Percent Hydration and the Simplest Formula of a Hydrate

For Students 9th - 12th Standards
Does the crystal structure of a hydrated solid determine the proportion of water absorbed, or does the application of heat change the absorption? Scholars experiment with both variables to determine the answer. They add their collected...
Lesson Planet

Determination of the Correct Stoichiometry of a Single Replacement Reaction

For Students 9th - 12th Standards
Many young scientists don't realize iron exists in two different forms in nature. During an enlightening experiment, they react iron with copper sulfate to cause a single replacement reaction. Then, they determine the correct...
Lesson Planet

The Water Lab – Spreadsheet Simulation

For Students 9th - 12th Standards
More than 70 percent of people and 90 percent of businesses use spreadsheets regularly. While many courses overlook the important skill, the simple water lab focuses on entering spreadsheet data, formatting it, and printing plots based...
Lesson Planet

Determination of the Specific Heat of an Element

For Students 9th - 12th Standards
Many periodic tables mention specific heat, but how do scientists determine those numbers? Scholars attempt to find the specific heat of a metallic element by using a calorimeter. Three experimental trials ensure accuracy, and analysis...
Lesson Planet

Heat of Reaction and Hess's Law

For Students 9th - 12th
Melting and burning might seem like opposites, but both exist as common examples of exothermic reactions. Scholars work with three different exothermic chemical reactions to determine the enthalpy changes. They measure and mix chemicals,...
Lesson Planet

Gas Pressure and Volume Relationship

For Students 9th - 12th Standards
Do your high school scientists know the four methods scientists use to communicate information? A simple experiment discovering the relationship between gas pressure and volume allows pupils to practice all four. After completing the...
Lesson Planet

Replacement of Hydrogen by a Metal

For Students 9th - 12th Standards
As the most abundant element on the earth, hydrogen requires no replacement. Yet scholars learn to replace hydrogen with a metal to liberate the hydrogen gas. A simple procedure and data table include the necessary information and...
Lesson Planet

The Periodic Law

For Students 9th - 12th Standards
Time to put the knowledge to the test! Young scholars take what they know about the periodic table and build their own from scratch. Using clues from 26 different elements, they place elements in a blank periodic table. The clues include...
Lesson Planet

Isotopes and Atomic Mass – Determination of the Average Atomic Mass of Pastium

For Students 9th - 12th
Sometimes modeling is the best approach to working with microscopic particles. A lab investigation models a fictional element using pasta. The setup uses three different pasta types to represent three different isotopes. Learners...
Lesson Planet

Effect of Solutes on Boiling Point

For Students 9th - 12th
Anyone that lives around snow knows that adding salts to water increases its melting point. Are there solutes that affect the boiling point as well? A scientific experiment has learners add different solutes to water and then monitor the...
Lesson Planet

Acid-Base Indicators

For Students 9th - 12th Standards
Acid-base indicators are an essential part of any chemistry classroom. Individuals explore the color-changing feature of the important indicators in a vibrant hands-on activity. Using serial dilution, learners create solutions ranging...