1. Circles, Squares, and Daggers By Navine Villalon 5 th grade student at Zela Davis Elem and and Mr. Paterson 5 th grade teacher at Zela Davis Elem

2. Vocabulary AAAAstronomical observatories AAAArchaeoastronomy CCCCarbon Dating HHHHorizon PPPPetroglyphs

3. Astronomical observatories “use context clues”  Did you know that Native Americans made long before Europeans arrived?  Did you know that Native Americans made astronomical observatories long before Europeans arrived?  Some astronomical observatories are located in Missouri. -places used for observing the sky -places used for observing the sky

4. Archaoastronomy “use context clues  Archaeoastronomy is a very new field that combines archeology with astronomy.  With archaeoastronomy, we are beginning to understand how people of the past observed the skies. - the study of ancient astronomical observations

5. Carbon Dating “use context clues” SSSScientists use carbon dating to find out a material’s age. TTTThe calculations agreed with carbon dating for the site. UUUUsing carbon14 to find out the age of a material.

6. Horizon “use context clues” BBBBright stars that shine briefly on the horizon occur before and after the summer solstice. AAAA star appears to not move because it’s fixed on the horizon. - a line formed in the distance of the Earth and sky.

7. Petroglyphs “use context clues”  Scientists believe that cavemen drew petroglyphs in caves.  You can find petroglyphs in the museum. - a drawing or word carved into rock.

8. Let’s Review  Carbon dating  Petroglyphs  Archaeoastronomy  Horizon  Astronomical observatories  A line formed in the distance of the Earth and sky.__________________  The study of ancient astronomical observations.___________  Using carbon 14 to find out the age of a material.____________  A drawing or word carved into rock._____________  Places to study astronomy. ________

9. Word Knowledge  gradually directly roughly absolutely  circle travel spiral pencil capitol  equinoxes inches cargoes varieties  social spokes shone Mexico adobe  The ball’s speed increased gradually, and it went directly through he goal.  She drew a circle and a spiral on her paper.  There are many varieties of fish in the ocean.  The adobe houses in Mexico are made of clay bricks that are baked in the sun.