6th Grade Science Reviewer
Part 7 Living Things and Their
Environment
Direction: Choose the letter with the best answer. Write your answer on
your answer sheet.
1. Which system works as a
support structure for your body?
A.
Nervous System
B.
Muscular System
C.
Digestive System
D.
Skeletal System*
2. What two systems provide form, stability, and movement to the body?
A.
Digestive and Nervous
B.
Muscular and Circulatory
C.
Digestive and Integumentary
D.
Muscular and Skeletal*
3. What system consists of the
skin, hair, and nails which protects the body from various kinds of threats?
A.
Integumentary System*
B.
Nervous System
C.
Digestive System
D.
Muscular System
4. The spongy substance found in
the center of the bones manufactures red blood cells, white blood cells, and
platelets.
A.
tendons
B.
bone marrow*
C.
joints
D.
ligament
5. It is the body’s largest organ
that covers the entire outside of the body, forming a
protective barrier against pathogens and injuries from the environment.
A.
liver
B.
cartilage
C.
skin*
D.
tendons
6. It is a point or area where
two or more bones meet.
A.
joint*
B.
tendon
C.
nerve
D.
cartilage
7. What is the smooth tissue that
protects the end of bones at the joints by preventing them from rubbing
together?
A.
muscle
B.
tendon
C.
ligament
D.
cartilage*
8. It is the food-processing
system of the body.
A.
Nervous system
B.
Digestive system*
C.
Skeletal system
D.
Muscular system
9. It is a hollow organ that
holds and squeezes the food while it is being mixed with gastric juices.
A.
small intestine
B.
esophagus
C.
stomach*
D.
liver
10. What do you call the process
of breaking down of food into simple nutrients that can be used by the cells of
the body?
A.
digestion*
B.
respiration
C.
excretion
D.
circulation
Sir
Elbert Previews and Reviewers