
Cell Theory and Scientific Experiments
Authored by Samah Elewa
Science
8th Grade
NGSS covered
Used 4+ times

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53 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cell theory originally had three main components: - All living organisms are composed of __________. - The cell is the ________________. - All cells arise from ______________________.
atoms, cells, tissues
molecules, tissues, organs
cells, basic unit of life, pre-existing cell
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are scientific theories formed? From __________ gained by many experiments of many scientists.
new empirical data
random guesses
unverified assumptions
personal beliefs
Tags
NGSS.HS-PS1-2
NGSS.HS-PS2-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the dependent variable in the experiment? The __________________ of the independent variable.
outcome
cause
control
variable
Tags
NGSS.MS-PS3-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
______________ independent variable should be changed or manipulated in a correctly performed scientific experiment.
only one
two
three
none
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the control group in the experiment? The control group does not receive the __________________________.
independent variable
dependent variable
placebo
treatment
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a line graph, the independent variable will be on the ________ and the dependent variable will be on the ________.
Y- axis, x-axis
x- axis, y-axis
z-axis, w-axis
Tags
NGSS.MS-PS3-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is random sampling important in conducting surveys? While a random sample is ______________________, you do not always get the results you hoped for.
more expensive
less biased
difficult to analyze
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