Atmosphere
The area on the Earth that has the most direct energy from sunlight is______________.
The Equator
Which invention made it possible for Summerian armies to use chariots
the wheel
Which is a unicellular organism? Give 2 examples
Living things made up of only one cell. Ex. Bacteria, paramecium, ameoba, bakers yeast,
What direction does the Nile River flow
from south to north
Which weather instrument measures air pressure?
barometer
What type of heat transfer come when the sun warms up the atmosphere
Radiation
What does "Paleolithic" Mean?
Old Stone (Stone Age)
What is DNA? Where is it found in the cell?
DNA is the genetic instructions passed down from parents. It is in the nucleus of a cell
How did most government officials get their jobs?
They were inherited from a family member
How does an increase in elevation affect air density and air pressure?
The higher the elevation, the lower the air density and pressure
What happens to the flow of thermal energy between two objects when are THE SAME TEMPERATURE?
There is no transfer of thermal energy between them
Cuneiform was used in ancient Sumer. What 2 things were needed for it?
Awedge shaped stylus and clay tablet
What are Mitochondria?
Organelles that convert energy in nutrients into usable energy
The shape and elevation of the land is called _______
Topography
The relative humidity of the air where new clouds form will be at what percentage?
100%
ACHOO! Solids in the air make you sneeze. Which materials might cause this to happen? (must give the vocabulary term)
aerosols
Which invention added strength and beauty to Sumerian buildings
arches
How is a virus different than bacteria?
Viruses are nonliving particles, while bacteria are living organisms.
What was papyrus and what was it used for?
Papyrus was a type of paper that was made from a papyrus plant. Scribes wrote on papyrus
An air mass is a huge volume of air that has a uniform ________ and ______at a given altitude.
temperature and humidity
List the 5 layers that make up the atmosphere
the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere.
Why was silt a problem for the people of Sumer
It clogged the irrigation canals.
Name 3 features in a plant cell that are different than in an animal cell
Cell wall, chloroplasts, vacuole, lysosome
From Bottom to top, name the 6 social classes that made up the ancient Egyptian social structure
Peasants, Artisans, Scribes, Priests, Government Officials, Pharaoh
What is the name of the rating system that classifies wind speeds based on their effects on the surroundings?
The Beaufort Scale