The questions kids ask, answered properly.
Why is Pluto not a planet? What is the largest cell? Each guide gives the short answer first, then the long one with its sources, and ends at the poster it belongs to.
2026-10
Why Is Pluto Not A Planet?
It is still there and still round. The rules changed in 2006.
On the Solar System poster
2026-10
What Is A Black Hole?
Not a hole at all: a lot of mass in a tiny space.
On the Black Hole poster
2026-10
How Are Stars Born?
From a cloud of gas to a white dwarf, a neutron star or a black hole.
On the Life Cycle Of A Star poster
2026-10
What Is The Largest Cell?
An ostrich egg, or a seaweed you can hold. It depends on the question.
On the Cell poster
2026-10
What Are The Kingdoms Of Life?
Five kingdoms, six, or three domains? How scientists sort every living thing.
On the Tree Of Life poster
2026-10
What Is A Molecule?
Atoms are the bricks. Molecules are what you build with them.
On the Atoms And Molecules poster
2026-10
How Deep Is The Ocean?
Deep enough to hide Mount Everest with 2 kilometers of water on top.
On the Ocean Zones poster
2026-10
What Is The Biggest Dinosaur?
Nobody knows for sure, and that is the interesting part.
On the Dinosaur poster
2026-10
How Does The Eye Work?
Light in, upside-down picture, brain sorts it out.
On the Human Body poster
2026-10
How Many Elements Are There?
118, and the last four got their names in 2016.
On the Periodic Table poster
On the Solar System poster
2026-10
What Is A Black Hole?
Not a hole at all: a lot of mass in a tiny space.
On the Black Hole poster
2026-10
How Are Stars Born?
From a cloud of gas to a white dwarf, a neutron star or a black hole.
On the Life Cycle Of A Star poster
2026-10
What Is The Largest Cell?
An ostrich egg, or a seaweed you can hold. It depends on the question.
On the Cell poster
2026-10
What Are The Kingdoms Of Life?
Five kingdoms, six, or three domains? How scientists sort every living thing.
On the Tree Of Life poster
2026-10
What Is A Molecule?
Atoms are the bricks. Molecules are what you build with them.
On the Atoms And Molecules poster
2026-10
How Deep Is The Ocean?
Deep enough to hide Mount Everest with 2 kilometers of water on top.
On the Ocean Zones poster
2026-10
What Is The Biggest Dinosaur?
Nobody knows for sure, and that is the interesting part.
On the Dinosaur poster
2026-10
How Does The Eye Work?
Light in, upside-down picture, brain sorts it out.
On the Human Body poster
2026-10
How Many Elements Are There?
118, and the last four got their names in 2016.
On the Periodic Table poster