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WorksheetsEOG Review #1
Total questions: 20
Worksheet time: 9mins
Which is the best example of a pure substance?
peanuts
milk
gold
air
Which statement best explains how periods on the periodic table are organized?
increasing atomic number from left to right
increasing number of neutrons from left to right
decreasing number of electrons from left to right
decreasing atomic mass number from left to right
An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the ice is heated?
The molecules will begin to move slower.
The molecules will begin to move faster.
The molecules will begin to increase in density.
The molecules will begin to condense in the air.
Which best determines the number of wolves that can live in an area?
the amount of snow in the area each year
the number of birds that live in the area
the number of trees in the area
the amount of food available in the area
Which of these careers would a student studying biotechnology most likely pursue?
electrical engineering
astronomy
agricultural research
geology
Why do doctors suggest that people get a flu vaccine each year?
Viruses replicate more rapidly over time.
Viruses can mutate from year to year.
Vaccines are absorbed by the body after a year.
Vaccines get stronger over time.
Which of these organisms is a producer in a marine ecosystem?
fish
gull
algae
worm
If a body of water has high turbidity levels, what can most likely be concluded?
It has a low pH.
It is unsafe to drink.
It is too hot to drink.
It contains a lot of chemicals.
In which oceanic zone do clams and crabs survive by burrowing in the sand?
oceanic
intertidal
deep ocean
open ocean
Which best explains the importance of nitrogen in the cycling of energy and matter?
Nitrogen increases protein production in plants.
Nitrogen decreases protein production in plants.
Nitrogen decreases the effectiveness of photosynthesis.
Nitrogen increases the effectiveness of photosynthesis.
Which would best allow a species to survive environmental changes?
similar physical features
low mutation rate
small population
genetic diversity
Where do plants get most of the energy they need to live and grow?
water
soil
air
sunlight
Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?
They swim the same way.
They eat the same food.
They live in the same area of the ocean.
They have similar anatomies.
In the winter, the fur of the arctic fox is white. In summer, the fur darkens to a reddish brown. What most likely causes the fur of the fox to change color?
the amount of sunlight present
the fox's habitat
the fox's genes
the fox's age
How does a balanced chemical equation satisfy the Law of Conservation of Mass?
During a chemical reaction, the total amount of matter stays the same.
During a chemical reaction, matter is destroyed.
During a chemical reaction, one or more new substances are formed.
During a chemical reaction, the total number of atoms increases.
Which is a problem with using wind turbines to produce energy?
Wind turbines are efficient only in certain areas.
Wind turbines occupy a small area of land.
Wind turbines produce a large amount of energy.
Wind turbines create a large amount of pollution.
Which shows one example of a physical change and one example of a chemical change?
boiling water and melting wax
rusting iron and baking a cake
dissolving powder and shredding paper
freezing water and burning coal
Which factors can have the greatest effect on the health of a river system?
type of soil and salinity
nitrate levels and turbidity
human consumption and pH
natural disasters and tidal changes
What is a nonrenewable energy source?
solar
wind
hydropower
coal
How do scientists know that some mountains were once at the bottom of an ocean?
Freshwater rivers flow to the ocean.
Saltwater fish are found in some mountain streams.
Dinosaur bones have been discovered in the mountains.
Marine fossils have been found on the peaks of some mountains.
