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WorksheetsChanges Over Time
Total questions: 10
Worksheet time: 6mins
A scientific theory is....
an educated guess that has been right over and over again backed by lots of evidence.
a choice people make in their lives that can be right or wrong for them.
an educated guess that could be right or wrong, but only pertains to that specific situation.
Many facts put together support a....
theory
hypothesis
scientific fact
claim
Why is evidence such an important part of the theory making process?
to eliminate wrong theories
to be certain about the theories that are right
to give support to the theory
A scientific theory should always be based on a full set of...
observations
proven facts
claims
guesses
The Law of use/disuse was part of who's theory?
Darwin
Buffon
Lamarck
Tusi
Darwin's theory of evolution consisted of which of the following?
Genetic variation already exists in a population
Traits are inherited through genes passed down from parents
Change over time
Nature favors one gene over others (natural selection)
Lamarck's Theory state...
Throughout their lifetimes animals improved themselves
Changes are caused by the struggle to survive
Acquired traits are passed to offspring
Law of Use / Disuse
According to Darwin's Theory of evolution, Changes in a population occur
fast
slowly
once in a while
almost never
According to Lamarck's theory changes are caused by the struggle to survive
True
False
Lamarck and Darwin agreed that
Organisms have changed over time (evolved)
Genes are changed by an individual’s life experiences or activities
Organisms change to better fit their environment
Nature favors one gene over others (natural selection)
