Nature & The World
Animal Origins
Human Behavior
Modern Mysteries
Mixed Up Topics
100

Nature

Why the moon changes shape

100

Turtles

Why turtles hide in shells

100

dreams

Why people dream

100

Socks

Why socks disappear in the dryer

100

Owls

Why owls hunt at night

200

Rivers

Why rivers curve

200

Raccoons

Why raccoons wear masks

200

Rules 

Why rules exist

200

Phones

why phones die at 1%

200

Laugh

Why we laugh

300

Mountains

Why mountains have different shapes

300

Snakes

Why snakes shed skin

300

Sleep

Why we need sleep

300

alarms

Why alarms sound louder in the morning

300

Oceans

Why the ocean has waves

400

Leaves

Why leaves change color

400

Skunks

Why skunks spray

400

Competition

Why people compete

400

days

Why school days feel longer than weekends

400

slacker

Why group projects have one slacker

500

Thunder

Why thunder follows lightning

500

Frogs

Why frogs sing after rain

500

fear

Why we fear darkness

500

screens

Why people can’t stop scrolling

500

teachers

Why we remember homework at night