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8th Grade Science Extend2 EOG Review Part IV
Test Description: EOG Review extend 2
Instructions: Answer all questions to get your test result.
1) What will most likely happen to a population of rabbits if the foxes who prey on rabbits become extinct
A
the population of rabbits will increase
B
the population of rabbits will decrease
C
the population of rabbits will be the same
2) Which best determines the number of wolves that can live in an area?
A
the number of trees in the area
B
the amount of food in the area for the wolves
C
the amount of snow in the area each year
3) Based on the fossil records, what is true about the populations of organisms that lived on Earth?
A
most organisms that lived on earth are extinct
B
most organisms stayed the same over time
C
most organisms are found in the earliest rock layers
4) Which foods provide the healthiest nutrients and assist in digestion?
A
grilled chicken and a salad
B
hamburger and fries
C
chicken nuggets and mashed potatoes
5) Which element has properties of both metals and nonmetals?
A
Iron (Fe)
B
Silicon (Si)
C
Calcium (Ca)
6) The choices below list one example of a physical change and two examples of a chemical change. Which is a physical change?
A
Carbon dioxide forms when baking soda is added to vinegar
B
Water turns to ice
C
A candle is burned, and gives off heat and light
7) What would most likely happen if wind and solar energy were used instead of burning oil and coal?
A
The air would become less polluted
B
air temperatures would rise
C
erosion of soil would decrease
8) How does the use of renewable energy affect nonrenewable energy resources?
A
using renewable energy sources increase the need for coal mining
B
Using renewable energy sources causes nonrenewable energy to cost more
C
using renewable energy reduces the demand for nonrenewable energy resources
9) What is one way to reduce ocean pollution?
A
stop dumping waste products in the ocean
B
drink only bottled water and other drinks
C
prevent fishing in the ocean
10) Which would best indicate that lake water may be unsafe to drink?
A
the temperature of the lake water
B
the kind of microorganisms living in the lake
C
the presence of fish in the lake
*select an answer for all questions
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