Sci Lesson 3 Ch 16

Question 1

Who where the 1st to divide the sky into groups of stars?

Answer 1

Ancient people

Question 2

What is GALAXY

Answer 2

A huge system of stars, dust and gas held together by gravity

Question 3

In which galaxy are the sun the earth and the other planets in our solar system contained within?

Answer 3

The Milky Way

Question 4

What type of galaxy is the Milky Way?

Answer 4

A spiral galaxy

Question 5

Describe a spiral galaxy

Answer 5

Spiral galaxies look like pinwheels with bulging middles, and wispy arms that fan outwards

Question 6

Describe ELLIPITICAL GALAXIES

Answer 6

They are round or oval like a football

Question 7

Describe IRREGULAR GALAXIES

Answer 7

They have no real shape and are young galaxies in which new stars are forming

Question 8

What is a CONSTELLATION

Answer 8

A group of stars that form a pattern.

Question 9

Are stars close in the same constellation close to each other?

Answer 9

NO. they only appear to be

Question 10

How many constellations are there?

Answer 10

88

Question 11

What can a constellation also be called?

Answer 11

A stars ADDRESS

Question 12

The earth is divided into 2 hemispheres, what are they called?

Answer 12

Northern and Southern hemispheres

Question 13

What is a other name for the big dipper?

Answer 13

URSA MAJOR

Question 14

What is another name for the Little Dipper

Answer 14

URSA MINOR

Question 15

What is a another name for THE NORTH STAR

Answer 15

POLARIS

Question 16

Which constellations can only be seen in the NORTHERN HEMISPHERE?

Answer 16

The big dipper,
the little dipper and
the north star

Question 17

the North Star a part of which constellation

Answer 17

THE BIG DIPPER

Question 18

Different constellations are visible in only…. Give me an ex.

Answer 18

1 of the EARTHS HEMISPHERES.

For example: if you live in the northern hemisphere you see differnet star constellations than someone living in the southern hemisphere

Question 19

TAURUS aka THE BULL
SIRIUS Aka THE BRIGHTEST STAR
CENTAUR aka HALF MAN HALF HORSE
Can only be seen where

Answer 19

THE SOUTHERN HEMISPHERE

Question 20

SIRUIS, the star is part of what constellation

Answer 20

CANIS MAJOR. THE DOG STAR

Question 21

Why Stars look like they move?

Answer 21

BecAuse of the earths rotation

Question 22

Why do constellations change with the seasons.. give example

Answer 22

Because the earth travels around the sun.

For example, the winter nights sky looks different than the summer nights sky.

Question 23

PARAGRAPH: explain why constellations change over time

Answer 23

The stars that make up constellations appear to be constantly moving.

The earth rotates and revolves.

As the earth moves, the pattern of the stars in the night sky changes as well.

Question 24

Name the different galaxies there are.

Answer 24

Spiral
elliptical
irregular

Question 25

Which constellations can only be seen in the SOUTHERN HEMISPHERE?

Answer 25

Taurus (The Bull),
Sirius (the brightest star)
Centaurus (Half-man/Half-horse)

Sirius is a part of the constellation Canis Major (the Dog Star)