High School Chemistry · Grades 9–12
A complete, online, on-demand high school chemistry course taught by Mr. Riz. Over 400 video lessons, 18 labs (hands-on or virtual), three flexible learning tracks, and two pathways to earn college credit. Grades 10–12. Prerequisite: Algebra 1.
Course Overview
Built for grades 10–12 with Algebra 1 as the only prerequisite. Every resource your student needs is included at one price.
Designed for high school students in any homeschool setting.
Math-based and college-prep. No prior chemistry experience needed.
Watch any lesson, any time. No scheduled classes or live sessions required.
Flexible Tracks
Every track is college-prep and math-based. Students choose the pace that fits. Each track includes a day-by-day Calendar, Checklist, and Course Outline.
Chosen by ~20% of students
A slower pace with more study halls and review time built into the schedule. Ideal for students who need more time with each concept before moving on.
Chosen by ~60% of students
The standard pace chosen by about 60% of students. A thorough, well-paced course that covers the core curriculum without rushing.
Chosen by ~20% of students
Full depth and rigor. Covers every chapter in the course with maximum breadth. Best suited for students planning a science-focused college major.
Approximate distribution based on enrolled students.
Full Curriculum
From foundational measurement to electrochemistry. Every chapter includes video lessons, note pages, and worksheets.
Lab Work
Every lab can be completed in your home or virtually with Mr. Riz walking through the procedure on camera. No lab equipment purchase is required.
A Rainbow of Colors: Measuring Liquid Volume
Let’s Talk Lab Equipment
Density: A Quantitative Measurement
The Law of Conservation of Mass
Chemical and Physical Changes in Matter
Working with Glass Tubing
How Do Fireworks Work? Flame Tests
Mystery and Logic of the Periodic Table
Molecular Models of Covalent Compounds
Paper Chromatography: Felt-Tipped Markers
The Percentage of Oxygen in Potassium Chlorate
Hydrated Crystals
Stoichiometry: Mass to Mass
Empirical Formulas, Mass %, Limiting Reactants, % Yield, % Error
Calorimetry: Determining the Specific Heat of a Metal
“Rip a Can? Yes I Can!”
Titration: The Percentage of Acetic Acid in Vinegar

Middle School Science Manual
Written by Richard “Mr. Riz” Risbrudt, this hands-on manual brings a real chemistry lab into your home or classroom with a full year of experiments for grades 6–8.
Note: Lab material kits for this course will soon be available separately through Cornerstone Educational Supply (CES).
How It Works
There are no confusing portals or systems to figure out. Here is exactly what the student experience looks like.
Decide between Foundational, Traditional, or Honors based on your student’s pace and goals. All three tracks are college-prep.
Every track includes a structured Calendar, Checklist, and Course Outline so your student always knows exactly what’s next.
Stream lessons anytime. Videos average 12 minutes each, so the pace stays focused without overwhelming your student.
Note pages, worksheets, and 18 labs reinforce every concept. Labs can be done hands-on or virtually with Mr. Riz.
Mr. Riz is available by email and video call. Students get direct access to their teacher, not a support ticket.
College Credit
ChemExplained is the only homeschool chemistry course with two pathways for the student to earn college credit.

Students in 11th or 12th grade with a 3.0 GPA can earn credit for SCI 2451 and SCI 2452 (General Chemistry I) through Crown College. The application takes less than ten minutes.
Earn transferable credit from the entire ChemExplained course at over 240 Christian colleges and universities. Start your degree affordably with dual credit in fields like general studies, business, psychology, leadership, and more — and pursue science degrees after earning a dual credit associate degree.
Students can sign up through Hartwell Quest after completing the ChemExplained course.
Learn more at HartwellQuest.com/ChemExplainedSee for Yourself
Every lesson is taught at the whiteboard, step by step. Watch a couple of teaching samples so you can see the style before you commit to anything.
Want the full Chapter 1? It’s free, no credit card required. Start watching now.
No Risk
Chapter 1 includes all 8 video lessons and every chapter resource. No credit card required. See exactly what the course is before spending a dollar.
Full-year access from $345 · No subscription · No hidden fees