Upload date
All time
Last hour
Today
This week
This month
This year
Type
All
Video
Channel
Playlist
Movie
Duration
Short (< 4 minutes)
Medium (4-20 minutes)
Long (> 20 minutes)
Sort by
Relevance
Rating
View count
Features
HD
Subtitles/CC
Creative Commons
3D
Live
4K
360°
VR180
HDR
13,151,610 results
Dry ice is basically solid carbon dioxide. The surface temperature of a dry ice block is about -78 degrees Celsius or -109 degrees ...
3,152,300 views
6 years ago
Topic: Tooth decay What causes cavities? A black sketch pen. No. Our mouth contains billions of bacteria which live on our teeth, ...
405,592 views
Our blood mainly consists of a liquid called plasma, red blood cells, white blood cells and platelets. However, the color of our ...
523,760 views
Our topic for today is Digestive System in Humans. Digestion is a process in which complex food material is broken down into ...
7,327,285 views
9 years ago
X-rays are very high energy waves. They were accidentally discovered by a physicist named Wilhelm Rontgen. As he did not ...
238,251 views
Our topic for today is Structure of a Tooth. Our teeth help us to grind, chew, bite, etc. The visible part above the gum is called the ...
661,985 views
8 years ago
Millions of years ago, people living near equator received a lot of sunlight and ultraviolet radiation. Now, ultraviolet radiation is ...
312,945 views
Vaccines train our body to fight against the dangerous disease causing pathogens. Vaccines often contain weakened or dead ...
310,510 views
The Science Education program prepares leaders for science education roles in secondary and higher education. We believe that ...
665 views
2 years ago
Topic: Thermoregulation Why do we sweat? It is a natural way of our body to take a bath. No. Sweating helps in thermoregulation.
490,191 views
First of all, a fruit is formed from a flower. A flower consists of ovary, ovule, petals, sepals, stamens, etc. Most of these parts are ...
331,969 views
A heart attack or myocardial infarction is the complete blockage of blood flow to a part of the heart, causing its muscle cells to die.
2,249,213 views
The Smithsonian Science Education Center presents: Good Thinking! a new original series and professional development ...
26,337 views
Why does our Foot Fall Asleep? Many people believe that when our foot falls asleep, basically the blood supply has been cut to ...
504,157 views
1 year ago
Topic: Pimples Why do we get pimples? Because they don't want me to look handsome. No. Pimples are caused due to the ...
3,490,581 views
Topic: Human Bones How does a bone heal? Simple. By a bandage. No. Bones are one of the most important parts of our body.
1,558,796 views
Kenny Sherr, Associate Professor in Global Health at the University of Washington School of Public Health, explains what ...
12,928 views
7 years ago
What are Boogers? In order to understand Boogers, we need to first learn about mucus. Mucus is the slimy, sticky substance ...
1,752,128 views
Computer Science education for everyone.
307 views
5 years ago
Also, don't forget to subscribe to our YouTube channel.
361,305 views