Columbus City Schools
ABC: Acid Base Chemistry
Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun resource. Engage them...
Columbus City Schools
To Measure its Mass or Volume?
Atoms, elements, and molecules, oh my! Teaching the fundamentals of chemistry to curious sixth graders has never been easier to accomplish. Here is a resource that pulls together everything needed to get them off to a good start,...
American Chemical Society
Molecules Matter
Did you know that jumping spiders sometimes wear water droplets as hats? A seventh grade science lesson introduces the concept of what makes up water: tiny molecules that are attracted to each other. Starting with a chemistry discussion,...
Curated OER
Find the Percent of Iron in Manganate (VII)
Dilute sulphuric acid is used to oxidize manganate (VII) into manganese (II) and water. Step-by-step procedures are outlined on the worksheet as well as calculations for junior chemists to perform in their science journals. This...
American Chemical Society
The Periodic Table and Energy-Level Models
Teach your class to think of electrons as tiny packets of energy that travel in waves. Through a short video and diagram, participants see how electrons are located around the nucleus of an atom. They then get into groups and try to...
Curated OER
Unit 8 Redox and Electrochemistry
Two topics are covered by this chemistry worksheet: redox reactions and electrochemistry. Thorough review notes are followed by a series of multiple choice questions about oxidation numbers, redox reactions, electrochemical cells, and...
American Chemical Society
Using Chemical Change to Identify an Unknown
If you discover an unknown powder, how do you determine if it is safe? Lesson uses four different tests to identify the properties of various powders that appear the same. Then scholars get an unknown powder and have to determine which...
American Chemical Society
Changing State: Evaporation
Why do experiments require a control? Guide scholars through designing an experiment to see what they can do to evaporate water faster with a lesson that stresses the importance of controlling all variables. The second activity allows...
American Chemical Society
Energy Levels, Electrons, and Ionic Boding
Learners see how electrons are transferred in the bonding of NaCl. They then create models of NaCl using styrofoam balls and toothpicks to assist them in explaining the formation of ions and ionic bonding.
American Chemical Society
Changing State: Freezing
There are five types of frost: ground frost, air frost, hoar frost, glaze, and rime. Scholars mix ice and salt in a metal container to observe frost forming on the outside of the can. Animations and videos enhance the learning.
American Chemical Society
Density: Sink and Float for Solids
Steal cubes sink, but steal ships float. Lesson explores the density of solids as well as the density of water in determining what will sink and what will float. A hands-on group activity helps pupils see that weight and volume are two...
American Chemical Society
Can Gases Dissolve in Water?
Why does soda fizz when opened? Learners discuss the appearance of bubbles in soda bottles when opened. In groups, they design and complete an experiment comparing the amount of carbon dioxide dissolving in cold versus hot liquids.
American Chemical Society
Controlling the Amount of Products in a Chemical Reaction
Everyone enjoys combining baking soda and water. Here is a lesson that challenges scholars to analyze the reaction three different ways — the real substances, the chemical equation, and the molecular models. Class members experiment to...
American Chemical Society
Temperature and the Rate of a Chemical Reaction
Putting glow sticks in the freezer makes them last longer, but why is that? Lesson focuses on how temperature impacts the rate of a chemical reaction. It begins with a teacher demonstration, then scholars design their own experiments...
American Chemical Society
Density: Sink and Float for Liquids
We don't think of liquids as floating typically, but a quick look at any oil spill tells a different story. Lesson explores various densities of liquids and why this fact is important. After observing the density variation, scholars...
American Chemical Society
Moving Molecules in a Solid
Who likes magic shows? In the fourth of five lessons, pupils view a scientific magic trick. The ball fits through the ring easily, but then moments later, it won't pass through anymore. What changed? Can we reverse the change? Scholars...
University of California
Hot! Hot! Hot!
Calories are not tiny creatures that sew your clothes tighter every night, but what are they? A science lesson, presented at multiple levels, has learners experiment with heat, heat transfer, and graph the function over time. It also...
University of California
You Are What You Eat: Testing for Organic Compounds in Foods
We have all heard that we are what you eat, but what are we eating? An informative lesson opens with a discussion of the foods pupils have recently eaten. Then, young scientists perform four experiments on seven different foods to...
American Chemical Society
Molecules in Motion
I heard that oxygen and magnesium were going out and I was like "O Mg." Pupils experiment with adding food coloring to water of various temperatures in order to determine how temperature impacts molecular movement. This is the...
American Chemical Society
Does Temperature Affect Dissolving?
When making sweet tea, why do people dissolve the sugar in hot tea instead of cold tea? The class discusses the previous lab and builds upon it. Working in groups, they design an experiment to determine how temperature affects the...
Curated OER
Unit 2 ~ Atomic Structure
As an atomic structure reference and review tool, this handout fits the bill. The first page provides definitions and tables of orbitals, electrons, and energy levels. The second page is an opportunity to practice determining numbers of...
Curated OER
Finding the Percent of Iron in Lawnsand
In this percent of iron in lawnsand worksheet, high schoolers perform a titration of lawnsand using potassium manganate (VII) solution and find the number of moles of iron in the sample. Students use the number of moles to find the mass...
Curated OER
Redox Titration Problems Involving Manganate
In this titration worksheet, students determine the number of moles of an ion present in given solutions. Students calculate the relative formula mass and the concentrations of ions for solutions. This worksheet has 7 problems to solve.
Chicago Botanic Garden
Climate and Forest Ecosystem Services
Forests, through sequestration, capture excess carbon dioxide in our atmosphere and store it, aiding in climate change. The third installment in a four-part series on how climate impacts forests explores carbon sequestration. Classes...