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Reactions is a show that uncovers the chemistry all around us. We answer the burning questions you’ve always wanted to ask, blending the worlds of science and every-day life.

Watch • 11:15
Reactions
Liquid Marbles are the Coolest Scientific Breakthrough I've Made (So Far)
George tries to make a new discovery in a huge field of science... and he might have.
Episode: S11 E9 | 11:15
Watch • 12:00
Reactions
Exposing Fake Honey Using Carbon-13
This week Alex takes to the lab and investigates the stable isotopes in 20 different honeys.
Episode: S11 E8 | 12:00
Watch • 20:29
Reactions
George Figures Out Static Electricity
Rubbing two balloons together leads George to a shocking discovery.
Episode: S11 E7 | 20:29
Watch • 27:01
Building Blocks
Every Child is Different
Every child has their own pace and journey.
Episode: S1 E5 | 27:01
Watch • 17:14
PBS Space Time
Why The Multiverse Could Be Real
Can something that exists be bad science?
Episode: S11 E9 | 17:14
Watch • 18:56
PBS Space Time
Why Is All DNA Right Handed?
It may be that our very DNA inherited its twist from the underlying handedness of reality.
Episode: S11 E8 | 18:56
Watch • 1:54:54
FRONTLINE
Remaking the Middle East: Israel vs. Iran
FRONTLINE examines how Israel ended up fighting wars in Gaza and Iran — and the U.S. role.
Episode: S2025 E10 | 1:54:54
Watch • 17:21
PBS Space Time
Are The Fundamental Constants Finely Tuned? | The Naturalness Problem
Did God have any choice in creating the world? So asked Albert Einstein
Episode: S11 E7 | 17:21
Watch • 4:55
Friends & Neighbors
Friends & Neighbors | Me O My Earth | S7 | EP03
Me O My Earth is committed to looking out for Little Humans, Mother Earth and Endangered Species.
Episode: S7 E3 | 4:55