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

Science curriculum for K—5th grades.

90 sec
  • Hands-on — lead students in the doing of science and engineering.
  • Standards-aligned science lessons — Cover core standards in 1-2 hours of science per week.
  • Less prep, more learning — prep in minutes not hours. Captivate your students with short videos and discussion questions.

Sign up now to try Mystery Science for free.

Sign up

Video Bonus Vote
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Slide Image
Full Screen
Controls Icon Exit Full Screen
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Full Screen
Controls Icon Exit Full Screen
Slide Image
Full Screen
Controls Icon Exit Full Screen
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Here’s a “moving X-ray” of an animal. Can you guess which animal?
5
Full Screen
Controls Icon Exit Full Screen
Video trouble?
It’s a bat! Notice that it has bones in its wings.
5
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Slide Image
These are both X-rays. On the left is a human hand. On the right is another animal. What do you think it is? Why?
4
Full Screen
Controls Icon Exit Full Screen
This is a flipper of a sea turtle! Even though turtles don’t need fingers to swim, they still have finger bones inside!
4
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Slide Image
Here is the X-ray of part of an animal. What animal do you think it is?
3
Full Screen
Controls Icon Exit Full Screen
Slide Image
Here’s a hint: It lives underwater, and its eyes are on the sides of its head. Do you have any more ideas now?
3
Full Screen
Controls Icon Exit Full Screen
It’s a hammerhead shark!
3
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Slide Image
This is an X-ray of an animal’s head. What animal do you think it is? What are the big white parts in the X-ray?
2
Full Screen
Controls Icon Exit Full Screen
Slide Image
It’s a horse! They have 2 sets of teeth: small ones in the front to grab and tear food, and lots in the back to chew.
2
Full Screen
Controls Icon Exit Full Screen
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Here’s someone going inside a machine, but this machine won't show an X-ray. What do you think it will show?
1
Full Screen
Controls Icon Exit Full Screen
Video trouble?
It’s called a CT scanner. Unlike an X-ray, this machine can show people’s muscles and organs!
1
Full Screen
Controls Icon Exit Full Screen
Video trouble?
Slide Image
CT scanners aren’t just used for people. Doctors can use them to help animals too. This is a lion!
1
Full Screen
Controls Icon Exit Full Screen
Slide Image
Full Screen
Controls Icon Exit Full Screen
Full Screen
Controls Icon Exit Full Screen
Video trouble?

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?

  • Why do pandas only eat bamboo?

    -Korban, 3rd Grade

  • What is a drought?

    -Aaliyah, 2nd Grade

  • How do windmills work?

    -Junichiro, Kindergarten

How do braces work?

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!