This person studies stars, planets, and galaxies.
Astronomer
This is a creature from another planet.
Alien
This scientist studies the universe and space
Astrophysicist
This is a world that goes around a star, like Earth.
planet
This is when something is full of life and movement, like a busy jungle.
teeming
Scientists think this new _______ might have life on it.
planet
car
people
ocean
The alien left green _______ on the spaceship wall!
plant
teeming
juice
fingerprints
The ocean is _______ with plankton.
planet
teeming
scientist
world
Earth is the only known _______ planet right now.
habitable
teeming
planet
ocean
What might aliens leave behind?
scientists
fingerprints
planets
Which word is about the smallest life in the sea?
alien
chemical
plankton
