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WorksheetsScience Final 7th Grade
Total questions: 72
Worksheet time: 1hrs 19mins
Name
Class
Date
1.
Small bodies that orbit planets called
a)
Comets
b)
Moons
2.
What is the function of the cytoplasm?
a)
Stores water and mineral ions
b)
It holds all the organelles in place
3.
Organelle
a)
material inside the cell membrane- but not including the nucleus.
b)
single-celled microorganism that lacks a nucleus.
c)
specialized structure that performs important cellular functions within a eukaryotic cell.
4.
What cell structure is letter B?
a)
cell wall
b)
cell membrane
c)
nucleus
5.
What cell structure is letter F?
a)
nucleus
b)
cell membrane
c)
chloroplast
6.
The process where one cell divides into two.
a)
Mitosis
b)
Homeostasis
7.
Regulating a stable body temperature, fever, vomiting, and plants wilting are all examples of
a)
Mitosis
b)
Homeostasis
8.
Humans perform photosynthesis
a)
TRUE
b)
FALSE
9.
Select the correct sequence for the levels of organization from smallest to largest.
a)
cell --> tissue --> organ --> organ system --> organism
b)
organ --> cell --> organism --> organ system --> tissue
c)
tissue --> organ system --> organism --> cell --> organ
10.
Both plant and animal cells have this organelle to store water (and sometimes food), but plants have a large ________.
a)
Ribosomes
b)
Vacuole
11.
Robert Hooke was the _________________.
a)
first to observe non-living cells in cork and named them cells
b)
Guy that made the telescope
12.
Robert Hooke, Anton van Leeuwenhoek, Theodor Schwann, Rudolf Virchow, and Matthias Schliden were all responsible for what theory?
a)
The Theory of Gravity
b)
The Theory of Relativity
c)
The Cell Theory
13.
I am only found in a plant cell. I use radiant energy to make glucose through a process called photosynthesis. What am I?
a)
milk
b)
mitochondria
c)
cytoplasm
d)
chloroplast
14.
What is the name of the structure shown in the diagram? It is also known as the "powerhouse" of the cell.
a)
Nucleus
b)
Mitochondrion
15.
What did Leeuwenhoek create to look at cells?
a)
Kalidascope
b)
Telescope
c)
Microscope
16.
When you breathe, your lungs take in ___ and remove ___.
a)
carbon dioxide/waste
b)
oxygen/carbon dioxide
17.
The process of breaking down food
a)
teeth
b)
circulation
c)
digestion
18.
removes liquid and gas wastes from the body
a)
digestive system
b)
lymphatic system
c)
excretory system
19.
lungs, skin, liver, kidneys, ureter, bladder, and urethra are part of the
a)
endocrine system
b)
lymphatic system
c)
excretory system
20.
supplies the body with oxygen and expel harmful carbon dioxide.
a)
respiratory system
b)
lymphatic system
21.
works with skeletal system to provide movement
a)
circulatory system
b)
muscular system
22.
brain, nerve cells, spinal cord
a)
endocrine system
b)
nervous system
23.
___________ are the building blocks of life.
a)
cells
b)
legos
c)
blocks
d)
blood
24.
sends signals to the body and controls processes in the body by producing hormones
a)
excretory system
b)
nervous system
c)
endocrine system
25.
When tissues come together, they form ___________.
a)
cells
b)
systems
c)
organs
26.
Which system fights disease?
a)
excretory
b)
immune
27.
The glands and hormones belong to this system.
a)
endocrine
b)
respiratory
c)
integumentary
d)
nervous
28.
Which system are the lungs in?
a)
respiratory
b)
digestive
c)
excretory
29.
Which system is the stomach in?
a)
respiratory
b)
digestive
30.
Smooth and Cardiac muscles are both
a)
voluntary
b)
involuntary
31.
The skin is the major organ in which system?
a)
Integumentary
b)
Muscular
c)
Endocrine
32.
What body system makes your body move?
a)
Circulatory
b)
Respiratory
c)
Skeletal
d)
Muscular
33.
Which of these is the most complex?
a)
brain
b)
red blood cell
c)
muscle tissue
d)
cow
34.
largest organ in the body
a)
skin
b)
heart
c)
stomach
d)
trachea
35.
Which system produces sperm and egg cells? In females, it also nourishes the fetus.
a)
reproductive
b)
endocrine
c)
lymphatic
36.
What is the body system that sends and receives electrical signals from the brain?
a)
Skeletal System
b)
Nervous System
c)
Muscular System
37.
Which two body systems interact to send oxygen throughout the body?
a)
integumentary and muscular systems
b)
respiratory and circulatory systems
38.
What are some major parts of the digestive system?
a)
kidneys, liver, bladder, and skin
b)
mouth, stomach, large intestine, small intestine
39.
Which three human body systems coordinate to cause an arm to move?
a)
nervous, muscular, skeletal
b)
respiratory, muscular, digestive
c)
skeletal, circulatory, immune
40.
The digestive system interacts with the _____________ system to bring nutrients to cells.
a)
nervous
b)
circulatory
41.
What happens when the food goes to the small intestine?
a)
nutrients gets into the blood
b)
the food keeps on going
c)
nothing
42.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
43.
How many pairs of chromosomes are in your cells?
a)
23
b)
19
c)
12
44.
Which of the following statements is true of asexual reproduction?
a)
The offspring are identical to the parent.
b)
Two parents join to make an offspring.
c)
The offspring are similar, but not identical to either parent.
45.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
46.
An allele whose trait only shows up when no dominant allele is present.
a)
recessive allele
b)
dominant allele
47.
What characteristic would a child not inherit from parents?
a)
freckles
b)
eye color
c)
hair style
48.
aa always shows up as
a)
dominant
b)
recessive
49.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Mendel
50.
A chart that shows all the possible combinations of alleles that can result from a genetic cross
a)
Square Chart
b)
Punnett Square
51.
An organism’s physical appearance, or visible traits
a)
Recessive
b)
Genotype
c)
Phenotype
52.
What does a Punnett Square help you do?
a)
Determine the ratio of phenotypes
b)
Determine the ratio of genotypes
c)
Predict possible traits the offspring will have
d)
All of the above
53.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
54.
If green is dominant over purple, then what is the genotype for this individual?
a)
GG
b)
gg
55.
How many parents does asexual reproduction involve?
a)
one
b)
two
c)
three
d)
four
56.
If two organisms reproduce sexually, then their offspring will exhibit a genetic makeup that is -
a)
identical to only one parent
b)
identical to all of its siblings
c)
a unique combination of traits
d)
the recessive traits of each parent
57.
In sexual reproduction the female produces ___ cells.
a)
Female
b)
Quack
c)
Egg
d)
Sperm
58.
In sexual reproduction the male produces ___ cells.
a)
Malex
b)
Quack
c)
Egg
d)
Sperm
59.
Tongue rolling, earlobes, dimples, and freckles are all examples of....
a)
Traits
b)
Genotypes
60.
If a fire erupts, immediately
a)
notify the teacher.
b)
run for the fire extinguisher.
c)
throw water on the fire.
d)
open the windows.
61.
Which of the following should NOT be worn during a laboratory activity?
a)
loose clothing
b)
dangling jewelry
c)
sandals
d)
All of the above.
62.
Long hair in the laboratory must be
a)
cut short.
b)
held away from the experiment with one hand.
c)
always neatly groomed.
d)
tied back or kept entirely out of the waywith a hair band, etc.
63.
Horseplay, practical jokes, or pranks in the classroom are
a)
always against the rules.
b)
okay.
c)
not dangerous.
d)
okay if you are working alone.
64.
Always carry a microscope using both hands.
a)
True
b)
False
65.
Texas Region with shipping, fishing industry.
a)
Coastal Plains
b)
North Central Plains
c)
Great Plains
d)
Mountains and Basins
66.
The Red River acts a natural border between
a)
Texas and New Mexico
b)
Texas and Mexico
c)
Texas and Oklahoma
67.
Flood water pounding against a canyon wall and wearing it down
a)
Weathering
b)
Erosion
68.
Rain washing away soil from a hillside
a)
Weathering
b)
Erosion
69.
Layers of sediment forming at the bottom of the ocean floor
a)
Weathering
b)
Erosion
c)
Deposition
70.
Water that collects in cracks and pores in underground soil and rock layers.
a)
surface water
b)
ground water
71.
A layer of permeable rock that allows water to flow through.
a)
ground water
b)
aquifer
72.
The flow of water from rain, snow melt, or other sources over land.
a)
runoff
b)
drainage
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