Galaxies Crossword Puzzle

QUESTIONS LIST:

• brightest : spiral galaxies are usually the _ .
• gravity : the force holding a galaxy together.
• young : a spiral galaxy contains both _ and old stars.
• elliptical : this galaxy has very little gas and dust.
• elliptical : this galaxy is made up of mainly old stars.
• amount : spiral and irregular galaxies are similar in the _ of gas and dust they contain.
• irregular : this galaxy may or may not have a disk and/or bulge in the middle.
• elliptical : a round/oval shaped galaxy.
• irregular : a galaxy without any symmetrical or definite shape.
• spiral : a pinwheel shaped galaxy.
• universe : all matter and energy, including all the galaxies and the space between them.
• rich : our galaxy, the milky way, is _ in gas and dust.
• galaxy : a large group of stars, gas and dust held together by gravity.