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7th Grade Final
7th Grade Final
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Final review
Flashcards
50 cards
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Practice quiz
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Host live
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Questions
50
Answers
1
All of the following are evidence for a chemical reaction except...
formation of precipitate
new substance is formed
production of a gas
melting
2
All of the following are forces that influence erosion except...
wind
rock
rain
plants
3
The force that impacted the foundation of this home is....
magnification
deposition
a very large gopher
erosion
4
What is the term that refers to energy in motion?
kinetic
potential
static
thermal
5
What is the density of a liquid with a mass of 5g and a volume of 2.5 ml?
4g/mL
1g/mL
3g/mL
2g/mL
6
The following image helps to support
Convection currents associated with plate tectonics
5
Temperature associated with core density
How volcanoes emerge from activity in the inner core
7
What are the products of photosynthesis?
glucose, oxygen
glucose, sugar
water, oxygen
glucose, carbon dioxide
8
Each molecule is made up of an elements individual _____________.
molecules
units
atoms
elements
9
Soil erosion that increases when humans remove trees and other vegetation.
composition
deforestation
urbanization
decomposition
10
Which of the following is a renewable energy source?
hydroelectric
nuclear
natural gas
coal
11
ecosystem disruption...
protects natural habitats
has no effect on biodiversity
increases biodiversity
threatens the existence of thousands of species
12
Which of the following is not necessary for photosynthesis to occur?
Oxygen
Sunlight
CO2
Water
13
When 2 or more atoms combine to they create a/an:
element
atom
pair
molecule
14
A symbiotic relationship where both organisms benefit would be considered?
mutualism
parasitism
commensalism
15
How would an increase in waste or dead organisms in a habitat affect the amount of decomposers?
There would be less decomposers because they would also die.
There would be more decomposers because they eat dead things
There would be less decomposers because their food is dead.
There would be more decomposers because nothing eats them.
16
Which layer of the Earth contains convection currents?
Crust
Outer Core
Asthenosphere
lithosphere
17
What happens to molecular motion when thermal energy increases.
motion decreases
motion increases
motion does not change
what is thermal energy???
18
Evidence
from fossils, glaciers, coastlines helps reveal how _______ fit together.
water molecules
homologous structures
generations
plates
19
The survival of a species is greatly increased by which of the following...
a nice pair of pants
biodiversity
ecosystem homeostasis
increase in predators
20
Carbon dioxide is an example of which of the following:
compound
proton
photosynthesis
element
21
Cellular respiration requires an organism to take in ______ in order to produce ________
glucose, oxygen
carbon dioxide, energy
oxygen, glucose
oxygen, energy
22
What is the main function of producers in any community?
create other species
hunt for other organisms
decompose dead materials
make food for consumers
23
What is the relationship between the population of each species, according to the graph?
There is no relationship
When one population increases, so does other population.
As one population goes down, the other goes up.
They are very good friends
24
Continental drift was proposed as a ____________ process stating earths plates are in motion.
constant
fun
slow
rapid
25
In which of the following phases of matter do molecules move the quickest?
super gas
gas
liquid
solid
26
The statement that matter cannot be created or destroyed describes...
The law of conservation of momentum
The law of conservation of your grade
The theory of relativity
The law of conservation of mass
27
The variety of life in the world or in a particular habitat or ecosystem is called what?
ecology
biodiversity
ecosystem
biology
28
Which of the following usually results when different species require the same food and space?
secondary succession
competition
primary succession
symbiosis
29
The energy of motion is known as....
thermal energy
kinetic energy
potential energy
dancing
30
What feature is formed when an oceanic plate converges with a continental plate?
rift valleys
ocean basins
volcanoes
folded mountains
31
Fossil fuels are considered nonrenewable resources because of which feature?
How they are produced
where they are from
how long they take to form
how useful they are
32
Resources on earth that take millions of years to replace are called what?
renewable
non-renewable
fabricated
natural
33
The interaction of living things with each other and their surroundings is called...
Chemistry
Biology
Economy
Ecology
34
Using the food web pictured, explain what might happen if the grasshopper population decreased?
the wolf population would decrease
the grass population would decrease
the wolf population would increase
the toad population would decrease
35
Using the food web pictured, explain what might happen if the carrot population decreased?
The fox population would decrease significantly.
The rabbit population would also decrease.
Birds would be wiped out
There would be no change in any other population.
36
_______ refers to the
energy
contained within a system that is responsible for its temperature.
potential energy
kinetic energy
heat
thermal energy
37
In which state of matter is particle motion the slowest?
solid
liquid
plasma
gas
38
Given the density of the previous liquid, is it possible that liquid is water?
No
Maybe
Yes
Unable to determine
39
The geological process in which sediments, soil and rocks are added to a land form or land mass
deposition
erosion
weathering
sediment
40
In addition to long periods of time, all are necessary for the formation of fossil fuels EXCEPT
extreme heat
extreme heat
organic matter
fresh water
41
Which subatomic particle is responsible for bonding?
proton
neutron
energy shells
electron
42
What is the formula for calculating density?
density/ volume
density/ mass
volume/ mass
mass/ volume
43
The following picture demonstrates what law?
Law of Conservation of Molecules
Law of Conservation of Energy
Law of Conservation of Mass
Law of Conservation of Gravity
44
Which of the following is a benefit of biodiversity to humans?
timber
food
medicine
all of the above
45
During a chemical reaction, the mass:
stays the same
increases
decreases
mass is unknown
46
Which of the following choices is an organic compound and a product produced by photosynthesis?
sugar
oxygen
carbon dioxide
water
47
Two or more chemically combined elements are known as what?
mixture
solution
element
compound
48
The waste products of cellular respiration are ____ and ____.
water and carbon dioxide
sugar and water
oxygen and sugar
hydrogen and lipids
49
Which of the following is an indication that a chemical change has taken place?
melting
formation of precipitate
new molecule formed
change in color
50
The following picture is an example which process that helps shape earths surface?
erosion
plate tectonics
volcanism
sea floor spreading
