Hypothesis, Theory, or Law?

Download Report

Transcript Hypothesis, Theory, or Law?

Scientific Method
Hypothesis
Theory
Law
Infer
Scientific
Method
Hypothesis
Theory
Law
Infer
Thinking, observing, questioning,
predicting, investigating,
researching, experimenting,
modeling, measuring, analyzing,
and inferring
Scientific
Method
Hypothesis
Theory
Law
Infer
Thinking, observing, questioning,
predicting, investigating,
researching, experimenting,
modeling, measuring, analyzing,
and inferring
Reasonable and educated
prediction based on previous
observations
Scientific
Method
Hypothesis
Theory
Law
Infer
Thinking, observing, questioning,
predicting, investigating,
researching, experimenting,
modeling, measuring, analyzing,
and inferring
Reasonable and educated
prediction based on previous
observations
Attempt to explain a pattern
Scientific
Method
Theory
Thinking, observing, questioning,
predicting, investigating,
researching, experimenting,
modeling, measuring, analyzing,
and inferring
Reasonable and educated
prediction based on previous
observations
Attempt to explain a pattern
Law
Rule that describes a pattern
Hypothesis
Infer
Scientific
Method
Theory
Thinking, observing, questioning,
predicting, investigating,
researching, experimenting,
modeling, measuring, analyzing,
and inferring
Reasonable and educated
prediction based on previous
observations
Attempt to explain a pattern
Law
Rule that describes a pattern
Infer
Draw a conclusion based on
observations and facts
Hypothesis
Scientific
Method
Hypothesis
Theory
Thinking, ________, questioning,
predicting, _______________,
researching, experimenting,
____________, measuring,
analyzing, and ______________.
____________ and __________
prediction based on previous
_____________
Attempt to __________ a
_____________
Law
Rule that ___________ a
_____________
Infer
Draw a _____________ based
on _____________ and _______
Theory
Hypothesis
Question-Science attempts to
answer questions about
the natural world. It does
not answer questions
about right, wrong, good,
or bad.
People throughout the ages have
wondered about the Earth that we
live on.
Theory
Hypothesis
Question--
Hypothesis—
Science attempts to
answer questions about
the natural world. It does
not answer questions
about right, wrong, good,
or bad.
A reasonable and
educated possible
answer based on
what you know.
An ancient Greek philosopher named
Eratosthenes proved that the Earth
was round in 200 B.C. He noticed
that at noon on the summer solstice,
in his city, the sun was directly
overhead. In Alexandria, at the same
time on the same day, the sun was at
a 7 degree angle. If the Earth was
flat, this would not be. He also used
this to calculate the circumference of
the Earth with great accuracy!
Despite Eratosthenes’
discoveries, many people
throughout Europe believed that
the Earth was flat. It looked flat,
so it must be flat!
Theory
Hypothesis
Question--
Hypothesis—
Science attempts to
answer questions about
the natural world. It does
not answer questions
about right, wrong, good,
or bad.
A reasonable and
educated possible
answer based on
what you know.
Theory—An
attempt to explain
a pattern observed
repeatedly in the
natural world.
Some people also noticed that during
a lunar eclipse, when the Earth’s
shadow covered the moon, the
shadow was round. This was further
evidence that pointed to the Earth
being round. Some people were still
not convinced! It still looked flat!
Other people saw that the stars in
the sky were different in different
locations. If the Earth were flat,
this would not be the case! Yet,
most people still maintained that
the Earth was flat! It looked flat!
Theory
Hypothesis
Question--
Hypothesis—
Science attempts to
answer questions about
the natural world. It does
not answer questions
about right, wrong, good,
or bad.
A reasonable and
educated possible
answer based on
what you know.
Law—A rule that
describes a pattern
in nature that has been
observed repeatedly.
It stands until someone
makes observations that
do not follow the law.
Theory—An
attempt to explain
a pattern observed
repeatedly in the
natural world.
_________–
__________—
Science attempts to
_______ questions about
the __________. It does
_____ answer questions
about right, _____, good,
or _______.
A __________ and
_________ possible
answer based on
what you ________.
_____—A _____ that
________—An
describes a _________
in _______ that has been
observed repeatedly.
It stands ______ someone
makes observations that
do ______ follow the ____.
attempt to ______
a ______ observed
__________ in the
natural world.
Eventually, sailors like
Christopher Columbus sailed past
the horizon and did not fall off the
Earth. This convinced almost
everyone that the Earth was
indeed round.
After years of proof and support with
no one being able to disprove the
theory, the theory of the Earth being
round became a
In modern times, we have sent
astronauts into space who have taken
pictures of the Earth. It is indeed
round.
There are people in recent history
who still believe that the Earth is flat.
Since they are unable to disprove the
Law, it remains. If they discover
evidence that proves the Earth is not
round, then the Law of the Earth
being round will drop back to the level
of a theory.
Hypothesis, Theory, or Law?
Heliocentrism
(The Earth revolves around the sun.)
Hypothesis, Theory, or Law?
Evolution
Hypothesis, Theory, or Law?
Gravity
Hypothesis, Theory, or Law?
Students perform better
on tests while chewing gum.
How can you observe
liquids passing
through a cell
membrane?
How does air
resistance affect the
velocity of falling
objects?
Is the ability to roll your
tongue dominate or
recessive?
Can the stem cell of a
plant reproduce root
cells for a new plant?
Liquids will pass into
the cell through the
cell membrane.
Air resistance will
slowdown all falling
objects, but gravity will
continue to pull them
down.
The ability to roll your
tongue will show up as
a recessive trait.
Stem cells from the
plant will produce root
cells for a new plant
80% of the time.
The water in the vinegar
passes through the cell
membrane. The particles
inside the egg are too
large to move out
through the membrane.
Air resistance slows down
all falling objects.
Lightweight objects with
more exposed surface
areas are more greatly
affected.
The ability to roll the
tongue is a dominate
trait. If both parents have
the recessive trait, their
child will not be able to
roll their tongue.
The cells in a plant
have the necessary
material to become
any other type of plant
cell.