LUOA's 8th Grade Semester 1 5.18.F - Test: Semester
Exam 2023 Questions and Answers
You are expected to complete approximately ___________________ minutes of
school work EVERY DAY, Monday-Friday, in each of your classes.
45
A(n) __________ is a logical interpretation based on observations and previous
knowledge.
inference
What is a theory?
A possible explanation of a general principle offered to explain observed facts.
To take back something someone stated publicly is to _________ their statement.
recant
Which experiment of Galileo's was performed on the moon?
dropping a feather and a hammer
The factors that can change during an experiment are referred to as _________.
variables
How many independent variables (IV) should you have in an experiment?
only one
Grandma Hippity Hop is worried about the ice that will be forming on her sidewalk
this winter. She doesn't have money to waste on sidewalk salt that is ineffective,
so Brenda decides to do some testing for her. What should her control be to test
this?
same size of ice cubes
Convert this number from standard form into scientific notation:
18,900,000
1.89 x 107
Convert this number from scientific notation into standard form:
2.987 x 107
29,870,000
Convert this number from standard form into scientific notation:
0.00045
4.5 x 10-4
______________ is the extent a measurement moves toward a known value.
Accuracy
Convert this number from scientific notation into standard form:
9.8 x 10-3
0.0098
Julie is having a swimming party and needs to replace the water that has
evaporated from her pool. What metric measurement will she use?
liters
To convert a smaller metric measurement to a larger one, you move the decimal
point to the ________.
left
Which is the proper way to cite a book using MLA format?
, Author's last name, first name. Title of book. City of publication: Publisher, year of
publication. Medium of publication.
How much time are you expected to spend on this class?
45 minutes a day, 5 days a week
What should you do if you are going to be away for a couple of days?
work ahead and finish assignments ahead of time
The metric system of measuring is always used by?
Scientists
Who was Aristotle's teacher?
PLato
What greatly affects how scientists (and you) look and interpret evidence?
Their worldview.
In studying science and the world around us you will find that there are many
things that you cannot _____________________ with your senses and test by
_____________________________ .
observe...experimentation
As you work through the scientific method and come to the conclusion that your
hypothesis is false, what should you do next?
Report your results and try again. with a new hypothesis
hypothesis
A possible explanation for a set of observations
observation
use of our five senses to gather information (data)
scientific inquiry
The process of continuous discovery and building of knowledge in the World of science
interpret
to understand according to an individual's beliefs
assume
to suppose as a fact
How many independent variables (IV) should you have in an experimen
only one
Jordan wants to see if earthworms prefer rough or smooth terrain to crawl
through. What will be his independent variable? This is what he will change in his
experiment.
change the terrain
What is the controlled variable (control) in an experiment?
the parts of the experiment which are not changed in any way
The one thing in an experiment that you are trying to measure is called the
________.
dependent variable
The factor in an experiment that you are trying to measure is referred to as the
_____.
dependent variable
Experiment Scenario: Amelia loves to play golf but hates it when her golf balls go
into the water. Some brands seem to soak up so much water that they never quite
make it to the green again. She has decided to test her dad's three favorite brands
Exam 2023 Questions and Answers
You are expected to complete approximately ___________________ minutes of
school work EVERY DAY, Monday-Friday, in each of your classes.
45
A(n) __________ is a logical interpretation based on observations and previous
knowledge.
inference
What is a theory?
A possible explanation of a general principle offered to explain observed facts.
To take back something someone stated publicly is to _________ their statement.
recant
Which experiment of Galileo's was performed on the moon?
dropping a feather and a hammer
The factors that can change during an experiment are referred to as _________.
variables
How many independent variables (IV) should you have in an experiment?
only one
Grandma Hippity Hop is worried about the ice that will be forming on her sidewalk
this winter. She doesn't have money to waste on sidewalk salt that is ineffective,
so Brenda decides to do some testing for her. What should her control be to test
this?
same size of ice cubes
Convert this number from standard form into scientific notation:
18,900,000
1.89 x 107
Convert this number from scientific notation into standard form:
2.987 x 107
29,870,000
Convert this number from standard form into scientific notation:
0.00045
4.5 x 10-4
______________ is the extent a measurement moves toward a known value.
Accuracy
Convert this number from scientific notation into standard form:
9.8 x 10-3
0.0098
Julie is having a swimming party and needs to replace the water that has
evaporated from her pool. What metric measurement will she use?
liters
To convert a smaller metric measurement to a larger one, you move the decimal
point to the ________.
left
Which is the proper way to cite a book using MLA format?
, Author's last name, first name. Title of book. City of publication: Publisher, year of
publication. Medium of publication.
How much time are you expected to spend on this class?
45 minutes a day, 5 days a week
What should you do if you are going to be away for a couple of days?
work ahead and finish assignments ahead of time
The metric system of measuring is always used by?
Scientists
Who was Aristotle's teacher?
PLato
What greatly affects how scientists (and you) look and interpret evidence?
Their worldview.
In studying science and the world around us you will find that there are many
things that you cannot _____________________ with your senses and test by
_____________________________ .
observe...experimentation
As you work through the scientific method and come to the conclusion that your
hypothesis is false, what should you do next?
Report your results and try again. with a new hypothesis
hypothesis
A possible explanation for a set of observations
observation
use of our five senses to gather information (data)
scientific inquiry
The process of continuous discovery and building of knowledge in the World of science
interpret
to understand according to an individual's beliefs
assume
to suppose as a fact
How many independent variables (IV) should you have in an experimen
only one
Jordan wants to see if earthworms prefer rough or smooth terrain to crawl
through. What will be his independent variable? This is what he will change in his
experiment.
change the terrain
What is the controlled variable (control) in an experiment?
the parts of the experiment which are not changed in any way
The one thing in an experiment that you are trying to measure is called the
________.
dependent variable
The factor in an experiment that you are trying to measure is referred to as the
_____.
dependent variable
Experiment Scenario: Amelia loves to play golf but hates it when her golf balls go
into the water. Some brands seem to soak up so much water that they never quite
make it to the green again. She has decided to test her dad's three favorite brands
