1st Semester Test #3 Question Preview (ID: 34453)
Semester Review.
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What does it mean to observe?
a) to examine carefully
b) to taste
c) to wash thoroughly
d) to carry out
What does it mean to infer?
a) To check your pulse
b) to cover with hair and fur
c) to explain why something happened
d) to shave the fur off of an animal
What is an independent or manipulated variable?
a) a variable that stays the same
b) a factor that is changed by the scientist, that which is tested
c) the skill of explaining
d) a doctors stethoscope
What is an experiment?
a) A statement
b) a skill that scientists have
c) A procedure designed to test a hypothesis
d) a way to organize your information
What are variables?
a) Factors that can change
b) a number
c) a letter
d) a written manuscript
What is a dependent or responding variable?
a) Factors in experiments that change
b) A factor in an experiment that changes because of what is done to the manipulated variable
c) a factor that is changed by scientists
d) a way to test a hypothesis.
What is a controlled variable?
a) A variable that does not change
b) a factor that is constantly changed
c) the results of an experiment
d) a variable that suddenly goes wild
What is a hypothesis?
a) A doctors promise
b) a statement about a problem that can be tested
c) a large crate that scientists keep their tools in.
d) A skill of watching things.
What is a data table used for?
a) It is a large table where scientists experiment.
b) It is used to hold the science tools
c) It is used as a large box to store equipment.
d) Used to organize information into columns and rows.
What do models allow you to do?
a) Experiment on something that is too large, too small, too expensive, too fast, or unavailable.
b) To predict things
c) To show off your clothes
d) to create a theory.
What is our sun made of?
a) Sun energy
b) metals
c) hot magma
d) hot gasses called plasma
How is Venus different from Earth
a) Venus has thick clouds and an atmosphere of carbon dioxide
b) Venus is closer to Mars
c) Venus is much larger than Earth
d) Venus is the third planet from the Sun.
What type of galaxy is the Milky Way?
a) an elliptical and it looks like a star
b) It is spiral shaped and looks like a pinwheel
c) It is irregular and looks like a cloud
d) It is spiral and looks like a square
How does the theory of plate tectonic explain why most volcanoes occur on plate boundaries?
a) As plates move apart or converge they may become weaker and allow magma to come to the surface.
b) Because they are on plates
c) because mountains can form
d) Because the plates cause volcanoes
Why do the stars appear to move at night?
a) Becuase they are moving with the galaxy
b) This is due to the Earth's motion.
c) Because some stars fall becoming falling stars
d) Because the Moon makes them look that way.
What type of star is our Sun?
a) A big one
b) A mid sized
c) A hot burning star
d) A giant star.
How do we measure LARGE distances in space?
a) The astronomical unit.
b) Km/h
c) Light years.
d) Miles per hour
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