Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
NOS Review
Test Description: Nature of Science 8th Grade Florida Test Review Questions
Instructions: Answer all questions to get your test result.
1) What is the difference between a experimental group and a control group?
A
none of these are correct.
B
the control group gets the independent variable or treatment, the experimental group does not.
C
they both are treated the exact same way in an experimental setting.
D
the experimental group gets the treatment or independent variable, the control group does not.
2) An experimental group that's purpose is for comparison to the other groups tested. This group does not receive the independent variable.
A
dependent variable
B
contrast group
C
control group
D
constant
3) How many independent variables does an experiment have?
A
three
B
four
C
one
D
two
4) What is an independent variable in an experiment?
A
The variable that is affected by changes in other variables
B
The variable that remains constant throughout the experiment
C
The variable that the researcher manipulates*
D
The variable that is not necessary in an experiment
5) Variable that is measured at the end of an experiment; the results (ex: does patient get better?) The dependent variable is always plotted on the Y axis.
A
Conclusion
B
Dependent Variable
C
Independent Variable
D
Theory
6) Qualitative observations are observations that
A
are more accurate
B
uses numbers
C
are less accurate
D
uses the five senses
7) What are Quantitative Observations?
A
b) Describing how something tastes
B
d) Measuring things like length, amounts, or time
C
a) Describing things like color
D
c) How something smells
8) What does repetition in science experiments refer to?
A
D) Conducting the same experiment with different variables
B
C) Using multiple subjects in an experiment
C
B) Repeating an experiment to test the reliability of the results*
D
A) Performing a similar experiment in different locations
9) What does scientific replication refer to?
A
A) The duplication of an entire research study by another scientist
B
B) The production of identical twins in a study
C
C) The repetition of a single experiment within a study
D
D) The publication of a research study twice
10) What is a scientific theory?
A
An explanation that ties together many hypotheses; explains why.
B
An explanation that ties together many experimental results; explains how.
C
An explanation that ties together many experimental results; explains why.
D
An explanation that ties together many hypotheses; explains how.
11) Scientific models are often used to help scientists understand a problem.
A
False
B
True
C
b
D
a
12) Models that you can see ande touch are called __________ models
A
computer
B
graph
C
idea
D
physical
13) The experiments dependent variable is also described as
A
the one thing changed and tested
B
the data that is measured during or after the experiment
C
the variable that must remain the same throughout the experiment
D
the variable used as a comparison
14) Which section of an experiment sheet tells what the experimenter expected to happen during the experiment?
A
Results
B
Hypothesis
C
Conclusion
D
Procedures
15) If an experiment is a controlled experiment, how many variables are intentionally changed?
A
none
B
only 1
C
2-3
D
as many as you want
16) In an experiment, a sample of granite, limestone, marble, and sandstone each had a constant supply of water running over them for 96 hours. The rocks were then checked for signs of erosion. What was the purpose of this experiment?
A
To analyze the effects of weathering on various environments of Florida.
B
To see what kind of rock particles are suitable for purifying water.
C
To see the effects of pH on different kinds of rocks.
D
To see how changes in the rate of water flow affect different kinds of rock.
17) A scientist experiments with lab rats in a controlled experiment about how the amount of exercise affects the body mass of lab rats. What is the independent variable of the experiment?
A
amount of exercise
B
type of food given
C
amount of food given to rats
D
size of rats enclosure
18) Any condition that can be changed in an experiment is called a variable. Which of these best explains why there should only be one variable changed in an experiment?
A
to reduce the chance of mistakes when doing the experiment
B
to make the experiment easier to perform
C
to get results from the experiment faster
D
to allow people to know what caused the observed results
19) Jaden is doing an experiment to find out if plants grow taller when given plain water or sugar water.To make sure his experiment is a fair test, Jaden should
A
give the sugar water plants twice as much water as the plain water plants.
B
treat both groups of plants the same except for the amount of sugar in the water.
C
put some plants in a warm, sunny spot and put the others in the shade.
D
use one kind of plant for the sugar water group and a different kind for the plain water group.
20) Frances was working on an experiment for science class. She dropped 4 steel balls of different weights from the same height. She noticed that the balls all reached the ground at the same time. Frances is probably doing an experiment on the-
A
force of wind
B
states of matter
C
quality of materials
D
effect of gravity
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?