Human Body
This organ is responsible for pumping blood through the vessels.
What is the heart
A scientist who studies fossils.
What is a paleontologist
This is a body of space filled with dust, gas, stars, and planets.
What is a galaxy
Some scientists believe birds evolved from...
What is dinosaurs
This organ is the largest in your entire body.
What is the skin
These tiny blood vessels deliver oxygen and nutrients and collect waste.
What is capillaries
This process explains how traits that help survival get passed on.
What is natural selection
This is the name of the black hole at the center of the Milky Way.
What is Sagittarius A
This carnivorous dinosaur had tiny arms and a powerful bite.
What is the Tyrannosaurus rex
his part of your brain controls your heartbeat, breathing, and digestion — all without you thinking about it.
What is the brain stem
Name the part of the brain responsible for balance and posture.
What is the cerebellum
The name "dinosaur" means this.
What is "terrible lizard"
This invisible force holds everything together in space.
What is gravity
This fast, smart dinosaur was featured in Jurassic Park.
What is the Velociraptor
The Sun’s outermost atmospheric layer.
What is the corona
These receive signals from other neurons.
What is dendrites
This event caused most dinosaurs to go extinct.
What is an asteroid impact (or mass extinction)
This object is made of ice, dust, and rock, and forms a tail when it gets close to the Sun.
What is a comet
The process where species change over time to survive better.
What is evolution
This flap in your throat closes when you swallow so food doesn’t go down your windpipe.
What is the epiglottis
Put these in order: air sacs, bronchi, trachea, bronchioles, .
What is trachea, bronchi, bronchioles, air sacs
The time period when most dinosaurs lived.
What is the Jurassic period
These colorful lights in the sky, caused by the Sun’s charged particles, are called the Aurora Borealis and Aurora Australis.
What is the northern and southern lights
This dinosaur had three horns and a bony frill.
What is the Triceratops
This powerful explosion on the Sun can affect satellites and even cause radio blackouts on Earth.
What is a solar flare