Open-and-go lessons that
inspire kids to love science!

Sign up for a free membership for next school year!
Only 946 free memberships remaining. Learn more

The most popular K-5 science curriculum

  • Hands-on lead students in the doing of science and engineering.
  • NGSS-aligned and Common Core make the transition to the Next Generation Science Standards and support Common Core.
  • Less prep, more learning prep in minutes not hours. Captivate your students with short videos and discussion questions.
  • 1+ million children STEM education is in crisis. Help us fix it.

Free memberships available to teachers who haven't tried Mystery Science, at schools that haven't had full memberships. Homeschool free memberships available for the first two Mysteries in each unit.

Plant & Animal Secrets Image
Plant & Animal Secrets
Plant & Animal Needs
NGSS Available
Weather Watching Image
Weather Watching
Weather & Seasons
NGSS Available
Force Olympics Image
Force Olympics
Forces, Machines, & Engineering
NGSS Available
Plant & Animal Superpowers Image
Plant & Animal Superpowers
Plant & Animal Structures and Survival
NGSS Available
Spinning Sky Image
Spinning Sky
Sun, Moon, & Stars
NGSS Available
Lights & Sounds Image
Lights & Sounds
Properties of Light & Sound
NGSS Available
Animal Adventures Image
Animal Adventures
Animal Biodiversity
NGSS Available
Plant Adventures Image
Plant Adventures
Plant Adaptations
NGSS Available
Work of Water Image
Work of Water
Erosion & Earth’s Surface
NGSS Available
Material Magic Image
Material Magic
Properties & Phases of Matter
NGSS Available
Animals Through Time Image
Animals Through Time
Animal Survival & Heredity
NGSS Available
Power of Flowers Image
Power of Flowers
Plant Life Cycle & Heredity
NGSS Available
Stormy Skies Image
Stormy Skies
Weather & Climate
NGSS Available
Invisible Forces Image
Invisible Forces
Forces, Motion, & Magnets
NGSS Available
Human Machine Image
Human Machine
Human Body, Senses, & the Brain
NGSS Available
The Birth of Rocks Image
The Birth of Rocks
Rock Cycle & Earth's Processes
NGSS Available
Waves of Sound Image
Waves of Sound
Sound, Waves, & Communication
NGSS Available
Energizing Everything Image
Energizing Everything
Energy, Motion, & Electricity
NGSS Available
Web of Life Image
Web of Life
Ecosystems & the Food Web
NGSS Available
Watery Planet Image
Watery Planet
Water Cycle & Earth's Systems
NGSS Available
Spaceship Earth Image
Spaceship Earth
Sun, Moon, Stars, & Planets
NGSS Available
Chemical Magic Image
Chemical Magic
Chemical Reactions & Properties of Matter
NGSS Available

Made for teachers. By teachers.

Doug Peltz Photo

Hi! My name is Doug,

I taught elementary science for seven years and made it my students’ favorite subject. I created Mystery Science to share my approach with you.

Every lesson begins with a Mystery that hooks your students. I then narrate an unforgettable story told with stunning images and videos and punctuated with opportunities for discussion. Every lesson concludes with simple hands-on activities designed to use supplies you already have (or are easy to get).

I hope my work saves you time & inspires your students. Read about our mission.

Doug Peltz Signature

“I love these lessons! Everything is right there. The video clips and questions are great. My students get so involved and everyone participates. As I walk around the classroom, I hear great discussions between the students.”

― Toni (3rd Grade Teacher, Grayling, MI)

Sign up for a free membership for next school year!
Only 946 free memberships remaining.