Supercooled water stays liquid below 0°C — it can freeze instantly when disturbed.

Dark matter is believed to make up most of the universe’s mass but has not been directly observed.

Fact #1594 · Science

Electricity involves the movement of charged particles.

Fact #29 · Science

There are more possible chess games than atoms.

Fact #1694 · Science

The discovery of blood types improved transfusion safety.

Fact #1226 · Science

Practice can strengthen neural pathways in the brain.

Fact #968 · Science

Ants do not have lungs and breathe through small openings in their bodies.

Fact #351 · Science

The use of microscopes improved understanding of pathogens.

Fact #1231 · Science

The Earth's outer core is liquid metal.

Fact #250 · Science