WorksheetsPractice Final, 7th grade
Total questions: 28
Worksheet time: 27mins
Name
Class
Date
1.
Which graph would best represent the data for mass?
a)
pie chart
b)
bar graph
c)
line graph
d)
histogram
2.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
3.
There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?
a)
quantitative
b)
qualitative
4.
There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?
a)
qualitative
b)
quantitative
5.
Two types of data scientists collect are...
a)
hypothesis and theory
b)
qualitative and quantitative
c)
myths and fables
d)
metric and standard measurements
6.
Measuring the number of times a person breathes after exercise involves ____ data.
a)
quantitative
b)
qualitative
7.
Qualitative data relies on numbers.
a)
False
b)
True
8.
What is a hypothesis?
a)
A hypothesis is the right answer to an experiment.
b)
A hypothesis is the wrong answer to an experiment.
c)
A hypothesis is an educated guess.
d)
I don't know.
9.
The number of deaths in a population in a certain amount of time.
a)
birth rate
b)
death rate
c)
population density
d)
net population change
10.
a ___________ is the specific part of an ecosystem in which an organism lives.
a)
niche
b)
population
c)
habitat
d)
home
11.
All the members of one species in a particular area.
a)
populaton
b)
community
c)
ecosystem
d)
organism
12.
The number of births in a population in a certain amount of time.
a)
death rate
b)
birth rate
c)
population density
d)
net population change
13.
All the different populations that live together in an area.
a)
population
b)
community
c)
ecosystem
d)
organism
14.
The largest population that an area can support.
a)
organic maximum
b)
carrying capacity
c)
death rate
d)
habitat
15.
An environmental factor that prevents a population from increasing.
a)
habitat
b)
ecosystem
c)
natural selection
d)
limiting factor
16.
A close relationship between species that benefits at least one of the species.
a)
Predation
b)
Competition
c)
Symbiosis
17.
The organism that benefits by living on or in a host in parasitism.
a)
Parasite
b)
Host
18.
A relationship between two species in which one species benefits and the other is neither helped nor harmed. (+/N)
a)
parasitism
b)
commensalism
c)
mutualsim
19.
. A relationship between two species in which both species benefit. (+/+)
a)
parasitism
b)
commensalism
c)
mutualism
20.
A relationship in which one organism lives on or inside another and harms it. (+/-)
a)
parasitism
b)
commensalism
c)
mutualism
21.
Which best describes what the graph shows?
a)
The population increased the environment's carrying capacity for it.
b)
The population decreased the environment's carrying capacity fo rit.
c)
The population reached the environment's carrying capacity and stabilized.
d)
The population exceeded the environment's carrying capacity, declined, and then recovered.
22.
The graph tracks an animal population.
Which best describes what the graph shows?
Which best describes what the graph shows?
a)
The population encountered and then overcame a limiting factor.
b)
The population reached and exceeded the environment's carrying capacity.
c)
The population reached the environment's carrying capacity and then stabilized.
d)
The population moved toward the environment's carrying capacity but never reached it.
23.
Which is the most likely explanation for what happened to the population?
a)
It grew too rapidly.
b)
It adapted to its environment.
c)
It encountered a predator.
d)
It migrated to a new environment.
24.
A rabbit population grows until it reaches its carrying capacity, after which the population stabilizes in its niche. Which of the following graphs best illustrates this scenario?
a)
Graph 1
b)
Graph 2
c)
Graph 3
d)
Graph 4
25.
Four students observed an area in the Sonoran Desert to learn what the organisms make up the ecosystem's producers, consumers, and decomposers.
a)
#1
b)
#2
c)
#3
d)
#4
26.
In an experiment, the independent variable can be changed or controlled.
a)
True
b)
False
27.
In a scientific experiment, the dependent variable is the variable that is tested or measured.
a)
True
b)
False
28.
Tiffany hypothesized that if sedimentary rocks are generally weaker than metamorphic rocks, then they would erode more easily under running water.
In order to test this hypothesis, which of the following should be the independent variable?
In order to test this hypothesis, which of the following should be the independent variable?
a)
The type of rocks tested
b)
The rate at which the rocks erode
c)
The amount of water that runs over each rock.
d)
The length of time the rocks are kept under running water.
100 %
