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Review For State Exam
Test Description: Review for the state exam
Instructions: Answer all questions to get your test result.
1) Which action forms a different chemical substance?
A
burning a piece of wood
B
mixing salt and pepper
C
crushing a rock
D
melting an ice cube
2) Many scientists believe that crustal plate movement occurs because of convection cells contained in the Earth\\\'s
A
crust
B
outer core
C
inner core
D
mantle
3) Rocks are classified as igneous, metamorphic, or sedimentary according to
A
the minerals they contain
B
how they formed
C
their shape
D
their color
4) Many cells have a nucleus that contains chromosomes. These chromosomes carry genes that are composed of
A
DNA molecules
B
hormones
C
undigested food molecules
D
minerals and water
5) Competition is likely to occur between which two organisms?
A
goldfish and rabbits
B
deer and butterflies
C
owls and bacteria
D
grass and strawberry plants
6) What is the result of cellular respiration?
A
Energy for cell processes is released
B
Nutrients are excreted to prevent the buildup of body fat
C
Cells undergo decomposition
D
Oxygen is released for photosynthesis
7) How do decomposers obtain their food?
A
absorbing food from dead organisms
B
Hunting and killing prey for food
C
producing food from oxygen and sunlight
D
changing carbon dioxide and water into food
8) Living things are classified as producers or consumers according to
A
how they reproduce
B
the size of their communities
C
their speed of movement
D
how they obtain food
9) Which sequence of development is correct?
A
fertilized egg -- organ systems -- organs -- tissues
B
fertilized egg-- organs -- tissues -- organ systems
C
fertilized egg-- tissues--organ systems -- organs
D
fertilized egg -- tissues -- organs-- organ systems
10) Weather forecasts are more accurate today than in the past due to
A
plate tectonics
B
uses of images from space
C
air-quality control
D
global warming
*select an answer for all questions
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