Solar System, Galaxy, UniverseYEAR 1 SCIENCE

Class Opener

In the upper right square of your title page, complete the following:

Title the square with “Exploration”Answer the following question using as

much detail as possible: Explain how space tools help to contribute to space exploration

What are the differences between a solar system, galaxy, and universe?

Solar System, Galaxy, Universe

SPACE consists of many bodies, such as planets, moons, stars, meteors, comets, and asteroids.

Astronomers have organized SPACE into 3 groups.

SOLAR SYSTEM

A collection of planets that orbit around a star, along with asteroids, meteoroids, and comets

The planets may contain multiple moons that orbit them

GALAXY

A huge group of stars, solar systems, dust, and gas held together by gravity

GALAXY

There are 3 types of galaxies:

- Spiral (spiral outwards and spin)

- Elliptical (shaped like flat disk)

- Irregular (smaller and do not have a shape)

Spiral Galaxy

Elliptical Galaxy

Irregular Galaxy

Our galaxy is called the Milky Way and is spiral shaped

UNIVERSE

Can be defined as all of space and everything inside of it

Note Review

Highlight the 3 major terms: solar system, galaxy, and universe

With your blue utensil, chunk your notes With your green utensil, underline the definitions of

solar system, galaxy, and universe

-Update your glossary (solar system, galaxy, universe)

-Continue working on your book- due next Monday!

Space Hierarchy

Solar System

Universe

Spiral Galaxy

Elliptical Galaxy

Irregular Galaxy