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
It can be very difficult to build a working robot that moves like a human. These are having trouble walking!
5
But we are getting much closer. Look at this robot run! How else could robots move like humans?
5
People have built robots that can do gymnastics! There were even robots in the 2018 Olympics!
5
Not all robots are like people! Here are robots that look like dogs. What do you think they could be useful for?
4
It can help do dishes and even open doors. People are training the robot dogs to do more things every day!
4
Some robots fly! If you could create a flying robot, what would you want yours to look like?
3
Scientists made this flying robot look like a butterfly!
3
People have even invented swimming robots! What are some ways that a swimming robot could be useful?
2
This swimming robot can fit into tight spaces. It’s great at fixing broken machines and pipes underwater!
2
Robots that look like fish can get up close to REAL fish without scaring them. Now we can study fish better!
2
This person made a silly robot arm that makes a mess, but how might robot arms or hands actually be helpful?
1
Robot arms could cook for you! Imagine if one of these was in your home or in a restaurant!
1
Robotic fingers can do delicate tasks like surgery, helping people who are sick! Look at this one practice on a grape.
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?

  • Are any animals picky eaters?

    -Evan, 4th Grade

  • Could a baseball pitcher throw faster than the wind?

    -Colin, 2nd Grade

  • Why do some animals sleep during the day?

    -Eliana, Kindergarten

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 is Mars red?

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