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Worksheets7th Grade Mid-Year Exam 2016-17
Total questions: 58
Worksheet time: 29mins
Name
Class
Date
1.
When a wave passes by, water particles move
a)
toward shore in a straight line.
b)
slowly toward the bottom of the ocean.
c)
in the opposite direction
d)
in a circular motion.
2.
The strength of a wave depends mainly on its
a)
wavelength.
b)
frequency.
c)
wave height.
d)
trough.
3.
The region between the cell membrane and the nucleus is called the ____________.
a)
chloroplast.
b)
mitochondria.
c)
cytoplasm.
d)
lysosome.
4.
Organelles called _____________ capture energy from sunlight ad use it to produce food for the cell.
a)
cell membranes
b)
cell walls
c)
mitochondrias
d)
chloroplasts
5.
The total number of high tides that occur each day in most places is
a)
four
b)
two
c)
one
d)
five
6.
__________________ receive proteins and other newly formed materials and distribute them to other parts of the cell.
a)
Golgi bodies
b)
Ribosomes
c)
Nucleus
d)
Vacuoles
7.
A spring tide occurs when
a)
the moon, sun, and Earth are in a straight line.
b)
it is spring in the Northern hemisphere.
c)
it is spring in the southern Hemisphere
d)
the moon and sun are at right angles to each other.
8.
Low tides occur about every
a)
6 hours and 15 minutes
b)
24 hours
c)
2 weeks
d)
12 hours and 25 minutes
9.
Two gases found in ocean water that are ecessary for living things are
a)
hydrogen and helium.
b)
carbon dioxide and hydrogen.
c)
oxygen and carbon dioxide.
d)
oxygen and helium.
10.
____________ function as factories to produce proteins.
a)
Golgi bodies
b)
Ribosomes
c)
Organelles
d)
Lysosomes
11.
As you go deeper in the ocean, all of the following decrease EXCEPT
a)
temperature.
b)
pressure.
c)
the number of algae.
d)
light.
12.
Both surface currents and waves are caused mainly by
a)
winds.
b)
the Coriolis effect.
c)
the moon's gravity.
d)
differences in the density of water.
13.
A maze of passageways called the ________________ carries proteins and other materials from one part of the cell to another.
a)
chloroplasts
b)
mitochondria
c)
endoplasmic reticulum
d)
vacuole
14.
The horizontal distance between crests of waves is the
a)
pressure.
b)
wave height.
c)
trough.
d)
wavelength.
15.
_____________ is the force that causes tides.
a)
Pressure
b)
Tsunami
c)
Gravity
d)
Gulf Stream
16.
____________ produces most of the energy the cell needs to carry out its functions.
a)
ribosomes
b)
golgi bodies
c)
endoplasmic reticulum
d)
mitochondria
17.
Deep currents are caused by differences in
a)
pressure.
b)
gravity.
c)
wavelength.
d)
density.
18.
Surface currents usually flow more quickly than ____________
a)
deep currents.
b)
tsunamis.
c)
gulf streams.
d)
spring tides.
19.
The largest and most powerful surface current in the North Atlantic Ocean is the _____________________
a)
Spring Tide.
b)
Gulf Stream.
c)
Neap Tide.
d)
Coriolis Effect.
20.
_____________ are the small, round structures in cells that break down large food particles into smaller ones.
a)
Lysosomes
b)
Mitochondria
c)
Vacuole
d)
Endoplasmic reticulum
21.
A giant wave that usually is caused by an earthquake beneath the ocean floor is a
a)
spring tide.
b)
Gulf Stream.
c)
tsurnami.
d)
neap tide.
22.
____________ is the number of waves that pass a specific point in a given amount of time.
a)
Wave Height
b)
Wavelength
c)
Wave
d)
Frequency
23.
The _____________ is a large, oval structure that directs all of the cell's activities.
a)
cell membrane
b)
vacuole
c)
nucleus
d)
organelles
24.
_______ is a wall made of rocks or concrete that is built outward from a beach to reduce erosion.
a)
Groin
b)
Sand bar
c)
Dock
d)
Trough
25.
The gently sloping, shallow ocean floor extending out from the edge of a continent is known as the
a)
abyssal plain.
b)
continental shelf.
c)
continental slope.
d)
intertidal zone.
26.
The only part of the open ocean that receives enough sunlight to support algae growth is the
a)
intertidal zone.
b)
deep zone.
c)
surface zone.
d)
neritic zone.
27.
In cells without cell walls, the ___________ forms the outside boundary that separates the cell from its environment.
a)
mitochondria
b)
vacuole
c)
cytoplasm
d)
cell membrane
28.
Over time, heat and pressure transform some remains of dead organisms buried on the ocean floor into
a)
nodules.
b)
atolls.
c)
mineral deposits.
d)
oil and gas deposits.
29.
The rigid layer of nonliving material that surrounds the cells of plants and other organisms is called the
a)
vacuole.
b)
cytoplasm.
c)
cell wall.
d)
endoplasmic reticulum.
30.
Coral reefs and kelp forests are usually found in the
a)
neritic zone.
b)
intertidal zone.
c)
open-ocean zone.
d)
deep zone.
31.
The continuous range of mountains that passes through all of earth's oceans is the
a)
abyssal plain.
b)
mid-ocean ridge.
c)
continental slope.
d)
continental shelf.
32.
The smooth, nearly flat region of the ocean floor is called the
a)
mid-ocean ridge.
b)
trench.
c)
abyssal plain.
d)
continental shelf.
33.
____________ are tiny cell structures that carry out specific functions within the cell.
a)
organelles
b)
lysosomes
c)
nucleus
d)
cytoplasm
34.
Pollutants such as pesticides, sewage, and industrial waste, are carried into estuaries by
a)
waves.
b)
ocean currents.
c)
strong winds.
d)
rivers.
35.
Organisms that live in the ___________ zone must be able to tolerate periods of being exposed to the air.
a)
abyssal plain
b)
intertidal
c)
neritic
d)
open ocean
36.
My favorite subject is
a)
SCIENCE!!!
b)
math.
c)
social studies.
d)
language arts.
37.
An ______________ is a coastal inlet or bay where freshwater from a river mixes with salty ocean water.
a)
estuary
b)
aqua culture
c)
run off
d)
trench
38.
The farming of saltwater and freshwater organisms is called
a)
bioluminescence.
b)
water harvesting.
c)
aqua culture.
d)
diverging.
39.
The LAND area that supplies water to a river system is called a
a)
watershed.
b)
divide.
c)
wetland.
d)
marsh.
40.
Seafloor spreading occurs where plates are ________________ at the mid-ocean ridge.
a)
converging
b)
trenches
c)
stationary
d)
diverging
41.
Most ocean pollution comes from
a)
human sources.
b)
estuaries.
c)
tributaries.
d)
aliens.
42.
The _______________ are the deepest places on the ocean floor.
a)
abyssal plains
b)
open ocean
c)
trenches
d)
neritic zones
43.
__________ plankton form the base of open-ocean food webs.
a)
Animal
b)
Neritic
c)
Squidward
d)
Algae/plant
44.
Which of the following is a process that occurs in the water cycle?
a)
evaporation
b)
precipitation
c)
condensation
d)
all of the above
45.
______________ cannot survive without algae that grows on them.
a)
Coral reefs
b)
Rocky zones
c)
Neritic zones
d)
Estuary
46.
Why don't plants normally grow on the bottoms of deep lakes?
a)
The water is too salty.
b)
The water is too cold.
c)
Photosynthesis does not occur in water.
d)
There is not enough sunlight for photosynthesis to occur
47.
Neritic Zone depends on ______ and ________ to support organisms that live there.
a)
oil/pollution
b)
sunlight/upwelling
c)
sunlight/whales
d)
Algae/upwelling
48.
Many other substances can be diluted/dissolved in water making it a
a)
specific heat.
b)
capillary action.
c)
saline solution.
d)
universal solvent.
49.
What characteristics of water explains why it has many unusual properties
a)
water is a polar molecule.
b)
water is a nonpolar molecule.
c)
water is not a molecule.
d)
water molecules do not have electrically charged areas.
50.
Water going up the roots of plants and through the stems to the leaves is an example of which property of water
a)
capillary action.
b)
surface tension.
c)
specific heat.
d)
universal solvent.
51.
Lizzie, the Chinese water dragon, running on water is an example of which property of water
a)
capillary action.
b)
surface tension.
c)
specific heat.
d)
universal solvent.
52.
On a hot summer day, jumping in a cool pool is an example of which property of water
a)
capillary action.
b)
surface tension.
c)
specific heat.
d)
universal solvent.
53.
Dissolving sugar and Kool-Aide in water is an example of what property of water?
a)
capillary action
b)
surface tension
c)
specific heat
d)
universal solvent
54.
Wetlands help control floods by absorbing
a)
waste materials
b)
nutrients
c)
extra runoff
d)
silt and much
55.
What is the source of energy for the water cycle?
a)
gravity
b)
transpiration
c)
the oceans
d)
the sun
56.
A molecule that has electrically charged areas is called a
a)
atom.
b)
bond.
c)
polar molecule.
d)
gas molecule.
57.
When clouds form, condensed droplets of water form around which of the following?
a)
water cycles
b)
dust particles
c)
polar molecules
d)
vapor molecules
58.
More than 97% of the Earth's total water supply is found in
a)
the oceans
b)
ice sheets
c)
the atmosphere
d)
groundwater
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