Migration to America Flashcards
(71 cards)
Migration to America is the study of the ___?____ past.
Distant
Archaeology is the Scientific study of the physical remains of _____?_______ ___?______ ____?_____.
past human life
What do Physical remains include ???
artifacts, fossils, and living areas
an object, such as a tool left behind by a human being of an earlier time is called an ______?______ ??
Artifact
Physical remains are often ___?____ and must be dug up, identified, and dated
buried
who uses different methods to estimate the age of physical remains ??
Scientists
Remains can be very ___?____ to find
Difficult
Archaeologists develop __?___ , or explanations of ___?___ , based on the evidence they find.
theories or explanations of events
sometimes more than one __?__ fits the evidence.
theory
new ___?___leads to new theories
evidence
what can change how scientists interpret evidence?
new technology
different scientists support different __?___
theories
suppose you are an archaeologist trying to answer this question : when did the first people migrate to north America ?
what might scientists do to figure out the answer
- scientists might find new sites with human artifacts, thus providing new evidence.
- scientists might develop new technology that helps them assign different ages to existing artifacts
- scientists might come up with new theories using existing evidence
- scientists might learn more about the conditions in the world in which prehistoric humans lived
all of them are correct
when did people migrated to north America ?
the first people migrated to north America sometime between 30,000 and 13,000 years ago.
the movement of people from one region to another is called __?__
migration
most scientists believe that the first people to migrate to America came from ____?____
- Africa
- Europe
- Asia
- South America
Asia
population pressure, climate change, changing landscape and new technology are all reasons…..
why people migrated to north America
true or false
There are no written records of the first migrations of humans to the Americas.
true
true or false
archaeologists have not discovered any sites or artifacts of early humans.
false
true or false
archaeologists are now certain when the first migrants reached north America.
false
what did scientists believe connected Asia and north America during the most recent ice age ?
a land bridge
many scientists believe the first __?__ walked across this land bridge into north America.
migrants
the land bridge existed from about _ _,000 to _ _,000 BCE
28,000 to 10,000 BCE
what are the strengths of the land bridge theory ?
- people would not need special technology to walk across.
- they would have been following the animals they haunted.