Nature of Science
Interpreting Charts
Ecosystems
Nutrient Cycles
Human Impact
100
Which of the following is a characteristic of a good scientific hypothesis?
A. It cannot be tested
B. It is based on opinion
C. It can be tested and is falsifiable
D. It is always correct
C. It can be tested and is falsifiable
100
What is typically shown on the x-axis of a line graph?
A. Dependent variable
B. Independent variable
C. Units of measurement
D. Title
B. Independent variable
100
Which of the following is a biotic factor?
A. Temperature
B. Water
C. Soil
D. Tree
D. Tree
100
Which cycle involves the processes of evaporation, condensation, and precipitation?
A. Carbon cycle
B. Water cycle
C. Nitrogen cycle
D. Oxygen cycle
B. Water cycle
100
Which activity most contributes to deforestation?
A. Car emissions
B. Commercial logging
C. Recycling
D. Composting
B. Commercial logging
200
What is the purpose of a control group in an experiment?
A. To get more data
B. To compare with the experimental group
C. To confuse the variables
D. To speed up results
B. To compare with the experimental group
200
If a bar graph compares population sizes of animals, what would the tallest bar represent?
A. The species with the fewest individuals
B. The most dangerous species
C. The species with the largest population
D. The most endangered species
C. The species with the largest population
200
What level of organization comes after population?
A. Organism
B. Ecosystem
C. Community
D. Biome
C. Community
200
Which process in the carbon cycle returns carbon dioxide to the atmosphere?
A. Photosynthesis
B. Respiration
C. Transpiration
D. Nitrogen fixation
B. Respiration
200
Which gas is a major contributor to global warming?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Helium
C. Carbon dioxide
300
Which step comes directly after forming a hypothesis in the scientific method?
A. Analyze data
B. Ask a question
C. Draw a conclusion
D. Conduct an experiment
D. Conduct an experiment
300
Based on the graph, which tomato plant grew the most?
A. 1 Hour of Sunlight
B. 3 Hours of Sunlight
C. 6 Hours of Sunlight
D. 9 Hours of Sunlight
D. 9 Hours of Sunlight
300
In a food web, energy flows from:
A. Consumers to producers
B. Decomposers to herbivores
C. Producers to consumers
D. Carnivores to omnivores
C. Producers to consumers
300
Which organism is primarily responsible for nitrogen fixation?
A. Fungi
B. Plants
C. Nitrogen-fixing bacteria
D. Decomposers
C. Nitrogen-fixing bacteria
300
What is one major negative effect of urbanization on local ecosystems?
A. Increased biodiversity
B. Greater soil fertility
C. Habitat destruction
D. Less freshwater availability
C. Habitat destruction
400
Why do scientists repeat experiments?
A. To waste time
B. To get new hypotheses
C. To improve communication
D. To ensure results are reliable and consistent
D. To ensure results are reliable and consistent
400
Based on the above chart, which of the statements can be interpreted from the data?
A) These students are in college
B) The majority of the students are female
C) The majority of the students are 22 years old
D) The school is small
C) The majority of the students are 22 years old
400
Which of the following is a Secondary Consumer?
A) Antilope Squirrel
B) Brittlebrush
C) Collard Lizard
D) Wood rat
C) Collard Lizard
400
What role do plants play in the water cycle?
A. They filter groundwater
B. They cause evaporation from leaves in a process called transpiration
C. They absorb carbon dioxide
D. They reduce rainfall
B. They cause evaporation from leaves in a process called transpiration
400
Which human activity most directly leads to eutrophication in aquatic ecosystems?
A. Logging in rainforests
B. Fertilizer runoff from agriculture
C. Oil drilling
D. Airplane emissions
B. Fertilizer runoff from agriculture
500
Which of the following best distinguishes a theory from a law?
A. Laws are proven; theories are guesses
B. Theories explain why phenomena occur; laws describe what happens
C. Theories are facts; laws are hypotheses
D. Theories are temporary; laws are permanent
B. Theories explain why phenomena occur; laws describe what happens
500
Based on the above graph, what is being measured?
A) Height above ground
B) Number of nematodes
C) Amount of Cherries
D) Pin, Choke, and Black Cherries
B) Number of nematodes
500
If you wanted to add a decomposer to this food web, what organism would you say it would consume?
A) Grasses
B) Hawk
C) Frog
D) All of the above
D) All of the above
500
Q: Which of the following is not part of the carbon cycle?
A. Combustion
B. Photosynthesis
C. Evaporation
D. Decomposition
C. Evaporation
500
Which statement about renewable and nonrenewable resources is most accurate?
A. All natural resources can be replaced quickly
B. Nonrenewable resources regenerate faster than we use them
C. Renewable resources never run out
D. Nonrenewable resources take millions of years to form and are used faster than they are replaced
D. Nonrenewable resources take millions of years to form and are used faster than they are replaced