Share a free trial

Thanks for sharing!

How can we help you?

💡For purchasing info, see our Pricing Page

Science units

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!

Mini-lessons

Slide Image
Slide Image
Some parts of the world have floods. Schools can get full of water. Think like an inventor. What could you build to help these schools?
5
When it floods in Bangladesh, boats act like school buses, picking up students! In fact, students have school ON the boats too!
5
Some boat-schools even have playgrounds! Bangladesh wants to build more boat-schools since it floods there every year.
5
Slide Image
Many kids in Indiana and Ohio live on farms. Some take buses to school. But once a year they get to school in a different way. How?
4
Some high schools have “Drive Your Tractor to School Day” to celebrate local farmers and their families.
4
Some high school students in Nova Scotia, Canada, even ride tractors to prom, their school dance!
4
Slide Image
At this school in northern Michigan (USA), students put helmets in their cubbies. How do you think these kids get to school?
3
They take snowmobiles to school! This part of Michigan gets three times more snow than the average US city!
3
Slide Image
In gym class, students sometimes put on skis to learn how to safely get around in the snow!
3
Slide Image
Some people live in valleys like this one, between two tall cliffs. Think like an inventor. How could you help students get to school?
2
In this valley in China, students climb 17 ladders to get to school. The ladders stretch up a cliff higher than the USA’s tallest building.
2
Slide Image
Imagine that you live on one side of a valley, and your school is on the other side. How many ways can you think of to get to school?
1
In some villages in Nepal, kids used wires to cross over valleys and rivers on their way to school! Now most villages have bridges.
1
Some kids in Colombia, South America, use “ziplines” to get to school! It looks fun but scary.
1
Slide Image

Voting for this episode is now closed. Would you like to vote on the most recent poll?

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

  • What’s the hottest temperature any animal could survive?

    -Addie, 2nd Grade

  • Could you drive all the way around the world?

    -Shayne, 5th Grade

  • What is the oldest sport in the world?

    -Charlie, 3rd 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.

Why were traffic lights invented?

Watch the video to discover the answer and don't forget to vote for next week's question. There are mysteries all around us. Have fun and stay curious!

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