Share a free trial

Know a teacher that hasn’t used Mystery Science before? Invite them to try us for free through June 2026!

Thanks for sharing!

Send another invite

How can we help you?

💡For purchasing info, see our Pricing Page

Science units

Kindergarten

Animal Needs
Plant Needs
Severe Weather
Weather Patterns
Sunlight & Warmth
Pushes & Pulls

1st Grade

Animal Traits & Survival
Plant Traits & Survival
Day Patterns
Night Patterns
Light, Sound, & Communication

2nd Grade

Animal Biodiversity
Plant Adaptations
Erosion & Earth’s Surface
Material Properties

3rd Grade

Fossils & Changing Environments
Life Cycles
Heredity, Survival, & Selection
Weather & Climate
Forces, Motion, & Magnets

4th Grade

Human Body, Vision, & The Brain
Animal & Plant Adaptations
Earth's Features & Processes
Sound, Waves, & Communication
Energy & Energy Transfer
Electricity, Light, & Heat

5th Grade

Ecosystems & The Food Web
Water Cycle & Earth's Systems
Earth & Space Patterns
Stars & Planets
Chemical Reactions & Properties Of Matter
Get a free trial until June 30, 2026!
New members get full access to our science units, hands-on activities, mini-lessons, & more!

New members get a full, free trial through June 2026!
Back

Mini-lessons

Video Vote
Video trouble?
Video trouble?

We pulled three questions from our jar. Which question do you want to explore?

  • Can animals talk to each other?

    -Sutton, 3rd Grade

  • How many animals are in the ocean?

    -Sophia, 4th Grade

  • Why do we like some foods but not others?

    -Milo, 2nd Grade

Is the video not playing properly?

Please follow these steps:

  1. Very rarely a video will fail to completely load in your browser. Try to reload this page to see if that fixes the problem.
  2. If reloading does not help, try our other video player .
  3. If the video still fails to play, open this video in a new tab and please let us know you’re having trouble. We want to fix this issue for you.

Looking for a hands-on activity?

Try out a hands-on extension activity from Mystery Science.

View Hands-on Activity

This episode is locked

This lesson is not included in your limited access.

View pricing

This episode is locked

Your membership is expired. The archive of past Mini Lessons is not included in your limited access.

View pricing