Show:
Chemistry
Hydrology
Microbiology
Geology and Evolution
Hodge Podge
100
Elements that have properties of both metals and nonmetals
What is metalloid
100
Oil runoff from a road is an example of this type of pollution?
What is nonpoint source
100
Some women who took the drug thalidomide in early pregnancy gave birth to children with severe birth defects. Is thalidomide considered to be a) antibiotic b)mutagen c) vaccine or d) virus
What is b, muatgen
100
What best explains how geologic time scales can help scientists study the evolution of life on Earth a) they describe the existence of rocks before there was life on Earth b) they show that geological features have evloved at the same rate as organisms c) they compare the life histories of species that used rocks as a habitat or d) they correlate the existence of life on Earth with geological events
What is d
100
Information about the heredity of an organism is stored where?
What is the nucleus
200
What characteristic of aluminum allows it to be made into aluminum foil?
What is malleable
200
High levels of calcium and magnesium indicates the _____ of water
What is hardness
200
Parasites and this are both similar because they infect a host cell
What is a virus
200
The theory of global warming is based off of an increase of what atmospheric gas?
What is carbon dioxide
200
The importance of the cell membrane is what?
What is allows some things to enter in and out of the cell
300
Which way is the best way to determine if an object is made out of pure silver?
What is density
300
A bear eating a fish in a river illustrates this type of food web relationship
What is terrestrial-aquatic
300
What is most likely responsible for the formation of cancer cells a) an antibiotic b) a mutagen c) bacterium d) parasite
What is b) mutagen
300
What is the best method for verifying data gathered by satellites a) ground truthing b) reflectance curves c) satellite imagery d) spectral analysis
What is a) ground truthing
300
What is an example of a physical change a) boiling b) burning c) rotting d) rusting
What is a) boiling
400
What element is a poor conductor of heat a) F b) K c) Fe d) Ag
What is F
400
What property of water is being tested if you are looking at whether an object sinks or floats?
What is buoyancy
400
What is the most likely cause for large drops in the amount of people infected with viruses?
What are vaccines
400
The Mid-Atlantic Ridge exists between the African and South American geologic plates. Which process most often occurs at the Mid-Atlantic Ridge a) destruction of underwater materials b) creation of new continents c) subduction of geological plates or d) spreading of sea floor
What is d) spreading of sea floor
400
Where is the majority of Earth's freshwater located?
What is polar ice caps
500
A beaker with 100 mL of water is placed on a hot plate and heated. The water boils at 100 degrees celsius. At which temperature would 90 mL of water.
What is 100 degrees Celsius
500
Which statement best explains why some insects can walk across the surface of a lake a) water is a polar molecule and its adhesiveness causes good capillary action b) water is a non-polar molecule and its cohesiveness causes good capillary action c) water is a polar molecule and its cohesiveness causes high surface tension or d) water is a non-polar molecule and its high adhesiveness provides high surface tension
What is c
500
What project is most likely to interest a scientist working at a biotechnology company a) study and reconstruction of fossilized bones b) conservation of key species within ecosystems c) development of genetically modified corn plants or d) prevention of sewage leaking into water supplies
What is c
500
A scientist has a hypothesis that a large volcanic eruption caused a change in global temperature. Which information gained from ice cores is most useful in supporting the scietist's hypothesis a) levels of dissolved oxygen b) identities of trace elements c) estimates of natural radioactivity d) amounts of atmospheric dust
What is d) amounts of atmospheric dust
500
Having a low specific heat means this?
What is it takes little energy to change the temperature of an object