Which of these properties is a physical property?
A. boiling point
B. flammability
C. tendency to tarnish
D. tendency to rust
What is A. boiling point?
100
What is one reason that fossils are so rare?
A. Because conditions must be just right to form a fossil
B. Because the Earth hasn't had many organisms living on it
C. Because the Earth is young
D. Because humans destroy all fossils that they find
What is A. Because conditions must be just right to form a fossil?
100
What area does not use biotechnology?
A. food production
B. animal breeding
C. sanitation
D. geography
What is D. geography?
100
Where one species will benefit in a relationship and one species is harmed.
What is parasitism?
200
The components of a homogeneous mixture can be described as...
A. inseparable
B. evenly mixed
C. chemically bound
D. unevenly mixed
What is B. evenly mixed?
200
Water that is cloudy and hard to see through.
A. clear
B. turbid
C. transparent
D. good quality
What is B. turbid
200
When developing his theory on natural selection, Darwin realized...
A. that only the strong survive
B. that only the most fit will survive
C. humans are better able to breed perfect organisms
D. organisms develop physical adaptations during their lifetimes.
What is B. that only the most fit will survive?
200
Dr. Roberts contacted communities to warn them about a disease that could potentially become a pandemic. What did she do?
A. She contacted communities world wide
B. She contacted communities country wide
C. She contacted communities state wide
What is A. She contacted communities world wide?
200
Where all energy on Earth originates from.
What is the sun?
300
An unknown material is malleable and shiny. Which of the following would be the best choice as its identity?
A. sand
B. chlorine
C. diamond
D. Gold
What is D. Gold
300
Which of the following would be most responsible for cool nutrient rich water coming to the surface?
A. low pH levels
B. buoyancy
C. surface waves
D. upwelling
What is D. upwelling?
300
Which of the following activities would provide the most evidence about geologic history of the Earth?
A. studying ocean circulations
B. studying benthic vertebrae
C. studying sedimentary rock layers
D. studying the movement of water systems
What is C. studying sedimentary rock layers
300
How do viruses reproduce?
A. They spontaneously arise
B. They use chemical reactions
C. They enter a host cell and insert their DNA
D. They lay eggs
What is C. They enter a host cell and insert their DNA?
300
Bacteria produce nutrients that feed algae and duckweed. Duckweed and algae produce oxygen that bacteria need to survive. What type of relationship is this?
A. predation B. parasitism
C. mutualism D. decomposition
C. mutualism
400
Which of the following is the heaviest?
A. electron
B. proton
C. neutron
D. nucleus
What is D. nucleus?
400
Which of the following methods could you use to treat unsafe drinking water?
A. reverse osmosis
B. boil water
C. freeze water
D. evaporate water
What is B. boil water?
400
A scientist discovered that the age and kind of rocks along the edge of North America match the rocks along the edge of Europe. Which of the following does this support?
A. convection currents C. continental drift
B. evolution D. natural selection
What is C. continental drift?
400
What is a vector?
A. an individual that has a disease
B. a smaller organism that transmits to a larger organism
C. mosquitoes, rats, roaches
What is C. mosquitoes, rats, roaches?
400
Identify the question below that is best answered by the Theory of Evolution.
A. How do organisms change over time?
B. How did the Milky Way form?
C. How do pea plants inherit traits during reproduction?
D. What chemical processes are used in photosynthesis?
A. How do organisms change over time?
500
Which of the following is not a pure substance?
A. aluminum chloride
B. nitrogen
C. titanium
D. magnesium
What is A. aluminum chloride
500
What property of water causes water molecules to fall together as a raindrop instead of as individual molecule?
A. adhesion
B. surface tension
C. cohesion
D. specific heat
What is C. cohesion?
500
How do scientists observe the structures of organisms that lived long ago?
A. They observe fossils
B. The use satellite imagery
C. They observe habitats
D. They use sound waves
What is A. They observe fossils?
500
Which statement below correctly identifies the reason why viruses are not considered alive?
A. They have DNA
B. They have a protein coat
C. They are really small
D. They can only reproduce inside cells
What is D. They can only reproduce inside cells?
500
Which of the following represents the relationship between aquatic and terrestrial food webs?
A. lizard eating an ant
B. polar bear eating a seal
C. cat eating a mouse
D. squirrel eating nuts