Scientific Method
Which step of the scientific method involves forming a testable explanation?
Hypothesis
Which process changes liquid water into water vapor?
evaporation
Weather describes conditions over a short period of time, while climate describes—
Long-term patterns
Which resource is renewable?
Wind, sun, water
Which human activity increases carbon dioxide in the atmosphere?
burning fossil fuels
Which variable is changed by the scientist in an experiment?
independent
Clouds form during which stage of the water cycle?
Condensation
Which layer of the atmosphere contains most weather?
trophoshere
Fossil fuels are considered nonrenewable because they...
take millions of years to form
Deforestation most directly affects which Earth system?
Biosphere
Why are repeated trials important in an experiment?
to increase accuracy
Which process moves water from plants into the atmosphere?
Transpiration
Air pressure is highest when air is—
cool and sinking
Which resource is used to make plastic? (Wind, Water, Oil, Wood)
oil
How does pollution most often impact ecosystems?
Harms organisms
What tool is best for showing changes in data over time? (be specific)
Line graph
What happens during runoff?
Water flows over land
Which instrument measures air pressure?
barometer
Why is fresh water considered a limited resource?
It is unevenly distributed
Which is an example of a sustainable practice?
Using solar energy
What should be kept the same to ensure a fair test?
Constants
Which energy source drives the water cycle?
the sun
Warm air rises because it is—
less dense
Which practice helps conserve natural resources?
recycling
Urbanization can increase flooding because it...
decreases infiltration