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Worksheets7th Grade Science Midterm Review
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
What force is responsible for keeping planets in their orbits?
a)
Gravity
b)
Inertia
c)
Magnetism
d)
Nuclear Force
2.
Where is the asteroid belt located?
a)
On Earth
b)
Between Earth and Pluto
c)
Between Mars and Jupiter
d)
Between Saturn and Jupiter
3.
A compound...
a)
Made up of living organisms
b)
Made up of only one type of atom
c)
Only found within living organisms
d)
Is made up of multiple atoms
4.
Which of the following is an example of an element?
a)
CO2
b)
H2O
c)
H
d)
NaCl
5.
Which of the following is an example of a compound?
a)
O
b)
Fe
c)
H
d)
H2O
6.
What are elements made up of?
a)
Multiple types of atoms
b)
One type of atom
c)
Living organisms
d)
Only carbon
7.
Which of the following are the inner planets?
a)
Mercury, Venus, Earth, Mars
b)
Saturn, Uranus, Neptune
c)
Earth, Jupiter, Uranus, Pluto
d)
Mars, Earth, Pluto, and the Asteroid Belt
8.
What element must all organic compounds contain?
a)
Helium
b)
Iron
c)
Carbon
d)
Boron
9.
Which of the following is an example of an organic compound?
a)
H2
b)
CO2
c)
H2O
d)
Fe3SO3
10.
What is biodiversity?
a)
Different types of life found on Earth
b)
A group of the same species
c)
A biome
d)
The same type of life found on Earth
11.
What would happen to the biodiversity of an aquatic ecosystem if all of the species of fish suddenly disappeared?
a)
Biodiversity would remain the same
b)
Biodiversity would increase
c)
Nothing would change
d)
Biodiversity would decrease
12.
An interaction between two different organisms living in close physical association
a)
Symbiosis
b)
Habitat
c)
Food Chain
d)
Food Web
13.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. This is?
a)
Competition
b)
Mutualism
c)
Commensalism
d)
Parasitism
14.
Barnacles create home sites by attaching themselves to whales without harming/benefiting them. What kind of relationship is this?
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Predation
15.
In a mutualistic relationship?
a)
Both species benefit
b)
Only one species benefits
c)
Both species are harmed
d)
Neither species benefits
16.
The beneficial relationship between algae and fungi that make up a lichen is an example of?
a)
Competition
b)
Mutualism
c)
Commensalism
d)
Parasitism
17.
In what symbiotic relationship does one species benefit while the other is harmed?
a)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Competition
18.
In which symbiotic relationship does one species benefit while the other is not affected.
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Competition
19.
What does dichotomous mean?
a)
Divided into three opposites
b)
Divided into four opposites
c)
Divided into two opposites
d)
Not divided
20.
Which of the following is an example of a biotic factor?
a)
Flower
b)
Air
c)
Water
d)
Sunlight
21.
Which of the following is an example of an abiotic factor?
a)
Plants
b)
Rain
c)
Animals
d)
Paper
22.
What does the term "habitat" mean?
a)
The natural home or environment of an organism
b)
The climate of a biome
c)
A system of food chains
d)
A large naturally occurring community
23.
What does the term microhabitat mean?
a)
The natural home or environment of an organism
b)
The climate of a biome
c)
A small, subsection of a specific habitat
d)
A large community
24.
Which elements are brittle, typically a gas at room temperature, and not good conductors of heat or electricity?
a)
Metals
b)
Non-metals
c)
Metalloids
d)
Metallica
25.
Which of the following is a property of metals?
a)
Ductile (can be turned into a wire by pulling)
b)
Able to conduct heat or electricity
c)
Malleable (super flexible)
d)
All of the above
26.
Metalloids are less conductive than metals but similar in appearance.
a)
True
b)
False
27.
All of the following are examples of non-metals, except...
a)
Hydrogen (H)
b)
Helium (He)
c)
Boron (B)
d)
Carbon (C)
28.
Define the term producer:
a)
an organism that eats dead matter
b)
an organism that only eats meat
c)
an organism that makes its own food using energy from the sun
d)
an organism that eats plants
29.
What should a food chain always start with?
a)
Producer
b)
Primary Consumer
c)
Predator
d)
Tertiary Consumer
30.
Which of the following best describes a predator?
a)
A producer
b)
An animal who only eats plants
c)
An animal who hunts other animals to eat
d)
A parasite
31.
On the pyramid, animals that feed directly on herbivores are on which level? (Level 1=bottom)
a)
Level 1
b)
Level 2
c)
Level 3
d)
Level 4
32.
What do the arrows in a food chain represent?
a)
Which animals are friends
b)
The increasing size of the organism
c)
The relationship between the organisms
d)
The transfer of energy from one organism to the next
33.
True or False: A rabbit is an example of a producer
a)
True
b)
False
34.
Which of the following are known as decomposers?
a)
bacteria, fungus, and algae
b)
lions, zebras, and antelope
c)
trees, grass, and shrubs
d)
vultures, hyenas, and hawks
35.
Another name for autotroph is
a)
Carnivore
b)
Herbivore
c)
Consumer
d)
Producer
36.
What is an omnivore?
a)
An animal that eats other animals
b)
An animal that eats plants
c)
An animal that does not eat
d)
An animal that eats both plants and animals
37.
A decomposer is described as
a)
an organism that eats plants
b)
an organism that only eats meat
c)
an organism that eats organic waste and dead bodies
d)
an organism that eats both plants and animals
38.
If someone killed the only producer in a food web what would happen?
a)
Herbivores would turn into carnivores
b)
Nothing would happen
c)
All of the organisms would die
d)
The herbivores would become producers
39.
Which level below contains the most energy?
a)
Producer
b)
Consumer
c)
Decomposer
d)
Tertiary Consumer
40.
Which organism would have the least energy in the following energy pyramid?
a)
Grass
b)
Mouse
c)
Snake
d)
Owl
41.
Batteries covert chemical energy into...
a)
Electrical Energy
b)
Heat Energy
c)
Sound Energy
d)
Chemical Energy
42.
What type of transformation happens when a flashlight is turned on?
a)
Radiant to Mechanical
b)
Chemical to Electrical
c)
Mechanical to Solar
d)
Chemical to Nuclear
43.
What type of energy transformation happens during photosynthesis?
a)
Radiant to Chemical
b)
Mechanical to Radiant
c)
Radiant to Heat
d)
Chemical to Nuclear
44.
Which of the following is the correct formula for density?
a)
D=M/V
b)
D=M*V
c)
D=M+V
d)
M=D/V
45.
Which kingdom has the following characteristics... Eukaryotic, Sexual, Multicellular, Heterotrophic.
a)
Bacteria
b)
Protista
c)
Plant
d)
Animal
46.
True or False: Bacteria and Protista can both be autotrophic and heterotrophic.
a)
True
b)
False
47.
True or False: Organisms that reproduce sexually only have one parent.
a)
True
b)
False
48.
The kingdom Bacteria is...
a)
Eukaryotic
b)
Prokaryotic
49.
Coach Steele has a unknown substance with a density of 5g/mL and a volume of 50 mL. What is the mass of this unknown substance?
a)
100 g
b)
200 g
c)
300 g
d)
250 g
50.
Mr. Chambers has a roach with a mass of 55 g and a volume 550 mL. What is the density of the roach?
a)
0.1 g/mL
b)
1 g/mL
c)
2 g/mL
d)
0.2 g/mL
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