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Mystery Science

By Mystery.org (part of Discovery Education)Checked October 29, 2026No affiliate links. Programs never pay to appear. How we label

Mystery Science is a library of online science units for kindergarten to 5th grade, written for classroom teachers and also sold to homeschool families. Each lesson starts from a question such as why some volcanoes explode: a narrated video exploration, then a hands-on activity with printable sheets and everyday supplies, then a short wrap-up. A homeschool membership gives one household the full lesson library for the school year; supply kits are sold separately.

Subjects
Science
Grades
Kindergarten to 5th grade source ↗
Method
Traditional source ↗
Format
Video lessons source ↗
Faith label
Secular
Cost a year
$199 a year. Homeschool membership for Mystery Science: $199, with full access through June 30, 2027. A bundle with Mystery Writing is $259. The site also offers new members a limited number of free trials to the same date. Read on October 29, 2026; prices change. source ↗
Placement
No placement test on the publisher’s site when we checked.

What it does well

  • Each lesson pairs a short narrated video with a hands-on activity, so the parent does not have to explain the science alone.
  • Every lesson lists its supplies and printouts ahead of time, and the publisher says lessons use common household items.
  • Units follow the standards for each grade from kindergarten to 5th grade, and written assessments are included.
  • Lesson narration comes in English and Spanish, with transcripts and a download option for slow internet.

Watch for

  • It stops at 5th grade, so you will need another program for middle and high school science.
  • Every lesson needs a screen and an internet connection for the video part.
  • Lessons and supply lists are written for a class of about 30 students, so a parent has to scale quantities down.
  • The supply packs are classroom packs, ship only in the US and are final sale with no returns.

It fits

A family with children in kindergarten to 5th grade who wants short, ready-made science lessons with a video to start and a hands-on activity to follow.

It doesn’t fit

A family that wants science without screens, or one program that runs past 5th grade.

Visit Mystery Science ↗

Compare Mystery Science

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Lists it is on

What we read, and how we label

Every fact on a card was read on the publisher's own website on the date shown, and the page it came from is linked. A fact we could not confirm there is left out. Costs are for one child and one year of the main package, as the publisher's page showed them that day; prices and sales change. Method and format are the publisher's own description where it gives one. The only thing we say about religion is one label, secular or faith-based, given by the rule above; where the publisher's pages don't settle it, the card has no label.

The publisher’s pages we read on October 29, 2026:

Something wrong or out of date? Publishers and parents can send a correction and we will fix it. Publishers can send corrections, never money. All programs compared · Find your homeschool style