Unit 2 Lesson 3

1
Unit 2 Lesson 3

• By Elisha, Darius G., and Anthony

2
Astoronomical Observation
3
Definition

• Places used for observing the sky

4
Sentence

• Native Americans made astronomical observatories
  long before the European arrived in North
  America.

5
Picture
6
Horizon
7
Definition

• Where the Earth meets the sky.

8
Sentence

• Pairs of small stones pointed to bright stars
  shone briefly on the horizon.

9
Picture
10
Carbon Dating
11
Definition

• How old something is

12
Sentence

• Carbon dating was used at the Moose Mountain
  Medicine Wheel site.

13
Picture
14
Archaeoastronomy
15
Definition

• The study of ancient observation.

16
Sentence

• There are many Archaeoastronomy in the world

17
Picture
18
Petroglyph
19
Definition

• A drawing or carving on a rock.

20
Sentence

• All over there are many such figures called
  petroglyphs, cut into a rock.

21
Picture