Download Astronomy Name Formation of the Solar System Directions: Use the

Astronomy
Name __________________________________
Formation of the Solar System
Directions: Use the words in the text box to complete the blanks. Number the sentences 1-15, in
chronological order.
gravity Saturn
nebula
asteroids
stellar wind
moons
Sun
meteoroids
supernova
planets
particles
solar nebula
gaseous
flattening
cooler
____ Icy matter and cooler gases settled on the outside of the disk where it was cooler. Planets
such as______________ formed from this.
____ The disk grew thinner as the solar nebula continued spinning.
____ The solar nebula began spinning and _____________.
____ The explosion made waves that squeezed the cloud.
____ The center got so hot it became a star we call the _______.
____ A powerful force called _______________ pulled the gas and dust together.
____ Some groups of particles grew bigger and bigger. These later became _______________
and _____________.
____ Our Solar System began as a molecular cloud of dust and gas.
____ The _________ _______ blew dust and gas around the solar system. This leftover dust and
gas formed smaller bodies like ______________ or _______________.
____ An exploding star, called a _____________, disturbed the cloud.
____ The _______________ of dust and gas began to stick together.
____ The cloud began to collapse.
____ Near the center only _____________ material could stand the heat.
____ This turned the cloud into what is called the ________
__________.
____ The solar nebula became hot and dense in the center. The surrounding disk of gas and dust
was ___________ at the edges.