Vocab
What does visible mean?
Capable of being seen; something you can see
What is dark matter?
an unknown substance
How can we view galaxies?
through a telescope
What are two synonyms of the word: visible
seeable, clear, obvious, noticeable
What are two antonyms of the word: visible
invisible, uncertain, hidden
What is a cluster?
a group of similar things that are close together
How many galaxies did we learn about from the BrainPOP?
3
Galaxies tend to fall into one of three main categories, based on their _______.
shape
What are two synonyms of the word: cluster
bunch, collection, bundle, group
What are two antonyms for the word: cluster
divide, separate, spread, scatter
What does dense mean?
closely packed together; compacted; crowded
What is an irregular galaxy?
A galaxy that does not have a distinct regular shape.
Our galaxy is called the ______ _____.
Milky Way
What are two synonyms of the word: dense
thick, heavy, solid, compact
What are antonyms for the word: dense
open, thin, light, loose
What does mass mean in terms of science?
the amount of matter in an object
What is a spiral galaxy?
A type of galaxy with a rotating disk and spiral arms that extend from a central bulge; twisted collections of stars and gas
Mass is to matter as volume is to ____________.
Mass is the amount of matter as volume is the amount of _______.
space
What are two synonyms of the word: mass
stack, bunch, clump, bundle
What are two antonyms of the word: mass
disperse, disband, come apart
What is a galaxy?
a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
What is an elliptical galaxy?
A galaxy with very little gas and dust, and is filled with old red stars that have random orbits in multiple planes
________ plays a really important role in galaxies. It's what keeps galaxies together and what sometimes makes them crash into each other.
Gravity
What are two synonyms of the word: galaxy
constellation, solar system, cluster
What are two antonyms of the word: galaxy
void, darkness, emptiness