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2022 Grade 8 Intermediate-Level Science Test Questions 1-10
Test Description: Use your knowledge of Science to answer all questions. Good Luck.
Instructions: Answer all questions to get your test result.
1) All living things are composed of
A
cells
B
organs
C
blood
D
vitamins
2) Which process is carried out by both a plant and an animal?
A
growing in size
B
taking in carbon dioxide
C
eating food
D
making oxygen
Helpful Hint
The chart below shows the classification of Felis catus, the common house cat.
3) Which level of classification contains organisms that are the most closely related?
A
Genus
B
Species
C
Kingdom
D
Family
4) When a person chews food, the teeth grind the food into smaller pieces. This is an example of
A
mechanical digestion
B
cellular respiration
C
chemical change
D
waste removal
Helpful Hint
The diagram below represents a human organ system.
5) What is the function of this system?
A
coordination of body movement
B
production of sex cells
C
breakdown of food
D
removal of dissolved wastes
6) The guinea pigs in a certain population all have black fur. The sudden appearance of a guinea pig with white fur in this population may be the result of
A
asexual reproduction
B
ozone depletion
C
gene mutation
D
habitat destruction
7) As their environment slowly changes, organisms with certain traits are more likely to survive and produce offspring with those same traits. This statement describes
A
resource conservation
B
genetic engineering
C
cell division
D
natural selection
Helpful Hint
The photograph below shows four different dogs. All four dogs belong to the same species.
8) The significant differences between these four dogs were caused by humans. These differences are best explained by the process of
A
selective breeding
B
regulation
C
biological adaptation
D
metamorphosis
Helpful Hint
Three birds are represented in the drawings below.
9) Studying the beak of each of these birds would best help a scientist understand
A
what the birds eat
B
if the birds migrate
C
how the birds fly
D
where the birds live
Helpful Hint
The graph below represents the extinction rate of invertebrates (animals without a backbone) over the last 600 million years.
10) Based on the graph, it might be concluded that
A
there were fewer extinctions 600 million years ago than at present
B
the most recent peak in extinction rate affected the largest number of groups
C
the five greatest invertebrate extinction rates occurred every 100 million years
D
the greatest invertebrate extinction rate occurred about 450 million years ago
*select an answer for all questions
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