Every free account gets 3 full lessons as printable PDFs. Pick yours

Kindergarten to Grade 12 · Schools worldwide

Hands-on lessons your class can do tomorrow.

A question kids actually ask, an experiment with everyday materials, and a printable teacher guide you can pick up and run. Plus the kits and classroom tech to go with them.

  • Full lessons, not samples
  • Materials under $30 a class
  • No student accounts, ever
A teacher and students at a classroom table watch a balloon on a bottle fill out in a tub of warm water.
How a lesson works

Five beats, one class period.

Learn the pattern once. Every lesson follows it, so you spend your time teaching, not decoding a new plan.

  1. 1

    Mission

    5 min

    A real question, told as a story. Your class becomes the team hired to answer it.

  2. 2

    Predict

    5–10 min

    Everyone makes a prediction and writes down why. Now they care how it turns out.

  3. 3

    Hunt

    20 min

    Hands on, in teams of three with rotating jobs. Everyday materials, a fair test.

  4. 4

    Reveal

    10–15 min

    Pool the results, compare with the predictions, and explain what happened with the science.

  5. 5

    Act

    10 min

    Use the evidence: a note, a design, a recommendation. Learning that goes somewhere.

Teacher guide, first page: Why do bike tires go soft in winter?The printable student sheet from the same lesson
What you download

A teacher guide and a student sheet, ready to print.

  • The whole plan. What to say, what to do and when, beat by beat.
  • Materials, counted. Quantities per team and roughly what it all costs.
  • The science, for a non-specialist. Background notes and the mix-ups to listen for.
  • Assessment built in. A rubric and an exit ticket.
  • A student sheet on its own page. Photocopy it for the class.
See this lesson
Kits and classroom tech

Open the box and teach.

Materials kits counted out for your class, and the Field Logger: a classroom instrument that takes fair, automatic temperature and light readings.

Visit the shop
For parents

Science at home, explained.

Lava lamps, oobleck, egg drops and rainbows: the experiments kids already ask for, with the science explained for the grown-up and easier and harder versions for siblings. No science background needed.

Science for families
Wherever you teach

Built on your curriculum, not bent to fit it.

Every unit lists what it covers: NGSS and the Common Core in the US, and provincial curricula in Canada, including Ontario, British Columbia and Alberta. We only list a code when the unit genuinely teaches it.

The examples travel well: cold mornings, farm fields, school buses and city sidewalks, with metric and imperial units side by side.

See curriculum alignment
United States

NGSS · Common Core

Performance expectations and math standards, by code.

Canada

Provincial curricula

Ontario, British Columbia, Alberta and more, by strand and outcome.

Home education

Your learning plan

Standards you can point to when you plan or report.

Pricing

Start with 3 lessons free.

Single unit

US$19 / C$25

Every lesson in one unit, yours to keep.

School licence

US$899 / C$1,199 a year

Up to 40 teachers at one school.

Field Logger

Measure it properly.

A thermometer gives you one number. The Field Logger records temperature and light automatically, station by station, and shows the graph as it happens. Your class finds the hottest and coolest places in the schoolyard, and proves it.

See the Field Logger

Materials you already have

Each lesson lists what to gather and roughly what it costs. Or we'll send a kit with everything counted out.

About kits

No student data

Students never sign up or log in. Teachers have an account for their lessons. That's it.

Our privacy promise

Honest science

We tell kids what an experiment can and can't show. Getting a messy result and explaining it is real science too.

What we believe
For schools and home educators

Bring it to your whole school.

A school licence gives up to 40 teachers at one school every lesson, with quotes, purchase orders and invoices. For home educators, every lesson works at a kitchen table.

Free account

Try any three lessons

Sign in with Google, pick any three lessons from any grade, and download the full teacher guide and student sheet.

Create a free account
Field notes

New lessons in your inbox.

About twice a month: a new lesson, notes from real classrooms and an experiment to try this week. Free, no spam, and every email has an unsubscribe link.