What Makes a Test Fair?
Paper helicopters and the idea of changing one thing.
Experiment Design Lab: Variables, Fair Tests and Real Data
A six-week course for ages 9 to 13 who enjoy experiments and are ready to think like scientists. Children learn to plan fair tests, collect data and decide what it shows.
Class Experience
Each week has one hands-on investigation, such as paper helicopters or dissolving sugar. The teacher focuses less on the wow and more on the method: what are we changing, what are we measuring, what must stay the same? Children record results in a lab notebook and graph them.
How classes work
The course meets once a week for 6 weeks, 50 minutes a class, with up to 5 learners. Each class builds on the last.
What we'll cover
Week 1: What Makes a Test Fair? – Paper helicopters and the idea of changing one thing.
Week 2: Measuring and Repeat Trials – Why three trials beat one.
Week 3: Tables and Bar Graphs – Dissolving sugar at different temperatures.
Week 4: Line Graphs and Patterns – Bouncing balls from different heights.
Week 5: Spotting Flaws – Find what is wrong with three example experiments.
Week 6: Your Own Investigation – Plan, run and present a fair test.
Learning Outcomes
Identify independent, dependent and controlled variables
Plan and carry out a fair test
Record data in a table and draw a graph
Write a conclusion supported by data
Prerequisites
Ages 9-13. For children who have done hands-on science before. An adult should be nearby during experiments.
What You'll Need
- Supplies
- Household items listed before each classNotebookPencil
- Device and internet
- Computer or tablet with camera and microphonestable internet connectiona table to work at
A materials list is sent before each session. Everything is a common kitchen or household item. An adult should be nearby during experiments.
Syllabus
6 LessonsA step-by-step plan of what your child learns, class by class. · 6 Weeks
Measuring and Repeat Trials
Why three trials beat one.
Tables and Bar Graphs
Dissolving sugar at different temperatures.
Line Graphs and Patterns
Bouncing balls from different heights.
Spotting Flaws
Find what is wrong with three example experiments.
Your Own Investigation
Plan, run and present a fair test.
Available Times
Next 7 days, US Eastern Time
- Mon, Nov 16 · 4:30 PM
- Wed, Nov 18 · 1:00 PM
- Thu, Nov 19 · 10:30 AM
- Thu, Nov 19 · 5:30 PM
- Fri, Nov 20 · 1:30 PM
- Fri, Nov 20 · 5:30 PM
Parents Often Ask
Yes. The club is about discovery; this course teaches how to design and judge an experiment.
A short write-up or graph each week, about 20 minutes.
Paper, a ruler, a timer and a few kitchen items. A list is sent each week.
6 weeks, with one 50-minute class a week.
Up to 5, so the teacher can give each child feedback.
Meet your Instructor
An experienced high-school science teacher with a degree in Biology and over 15 years teaching biology, chemistry, and physics. Instruction emphasizes cross-disciplinary connections so students understand how physical principles apply to living systems. This educator identifies common sticking points, uses hands-on and inquiry approaches to build conceptual understanding, and prepares students for NGSS and AP-style learning. Lessons focus on conceptual clarity, real-world examples, and developing transferable problem-solving skills.
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