Science (Astronomy and Physics): Is there Gravity in Space?

Veritasium delivers another great video about science.  In this video the question as to whether there is actually gravity in space is answered.  The video discusses that astronauts are not actually floating in space but in reality they are falling as well as the International Space Station.  They never hit the Earth though because they are also moving forward at an incredible speed.  Gravity does affect objects in space but because of motion, objects can maintain an orbit.  Veritasium does a great job explaining this through visual connections that might help you as a teacher get rid of some of the scientific misconceptions out there.

Subject:  Science (Astronomy and Physics)
Grade Level:  4-12
Time:  2:22

Science: Why do round objects hit the ground at the same time when dropped at the same time?

If you are teaching physical science and have often tried to come up with a great explanation about why objects hit the ground at the same time if they are dropped from the same height and time, then Veritasium once again does an excellent job with this explanation  The video first starts off with him asking people off the street about which ball will hit the ground at the same time.  After listening to their ideas he then performs the experiment.  He takes it one step further when he asks the people why they think both objects hit at the same time.  Some of their scientific ideas are pretty funny to listen to.  Try showing this video to your students asking them questions along the way.  Or even better yet try the experiment with them, adding different sized and weighted objects.


Subject:  Science (Physical)
Grade Levels:   6-12
Time:  3;00

Science: What is voltage, resistance, and current?

In this educational video, Grandpa John does an excellent job explaining voltage, resistance, and current.  He uses a series and different types of light bulbs for his demonstration.  Very easy to understand.

Grade Level:  3-12
Subject:  Physical Science
Length:  1:59