1. Oxygen Which of these is a natural factor that affects the environ-
ment?
2. burning of fossil Weather is an important environmental factor that affects
fuels on Earth. Which of the following human activities impacts
the weather negatively?
3. an increase in which of these is an example of how an abiotic factor
rainfall leads to affects a biotic factor?
an increase in
frog population
4. make a predic- the science team uses information to suggest the main
tion outcome of the hypothesis
5. observe the this step includes recording data, taking photos, and co-
problem ordinating information
6. test the hypothe- this is a critical part of the process that verifies that the
sis predicted outcome is valid
7. make a conclu- the scientists analyze the data gathered from the exper-
sion iment and summarize what they have learned from the
experiment
8. meteorologist a scientist that studies the climate and weather patterns of
the area
9. zoologist a scientist who studies the variety of animals in the envi-
ronment
10. geologist a scientist who studies the processes of the Earth's crust,
including earthquakes
11. microbiologist a scientist who studies the tiny microorganisms of the
environment
12. entomologist a scientist who studies insects, spiders, snails, and other
bugs of an environment
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