Nature of Science
Biology
Chemsitry
Physics
Scientific Method
100
What is the most useful tool in determining the kinetic energy of a 50g battery powered car traveling a distance of 10m
What is a stopwatch
100
A phenotypic change creates an advantage over other organisms.
How is a mutation beneficial to an organism?
100
Which element group is most likely to donate one electron?
What is group 1 (Alkali Metals)
100
A satellite is warmed by sunlight is an example of which kind of heat transfer.
What is radiation
100
A medical researcher hypothesizes that a newly developed medication can reduce high blood pressure. Name the dependent variable.
What is the blood pressure of the participants in the study
200
A researcher determined the percentage of electrical energy transformed into different forms of energy by a toaster. The best way to communicate these results is to display the data with what type of graph.
What is a circle graph
200
What causes a salt water fish to die in a fresh water tank?
What is osmosis? (the cells of the salt water fish would absorb the water which would cause the cells to cell resulting in cell death).
200
A certain atom has a nucleus containing six protons and eight neutrons and has six electrons orbiting the nucleus. This atom is a form of what element?
What is Carbon
200
When the air is released from a balloon the air moves one direction and the balloon moves in another direction. Which of Newton's three laws is this?
What is Newton's Third Law "For every action there is an opposite and equal reaction"
200
A study was conducted to test the effectiveness of hearing aids. People with different types of hearing loss were included in the study. If the conclusion is "Hearing aids are an effective way to treat hearing loss" what question would help in determing whether the conclusion is valid
What is the number of people included in the study.
300
Gas molecules collide less frequently when the volume of the gas is increased. Which law does this support?
What is Boyle's Law
300
Genetic Material can be found in?
What are cells and viruses.
300
The model O=X=O shows how an unidentified element, X, forms covalent bonds with oxygen. In which group of the periodic table does element X most likely belong?
What is group 14
300
Diverging lenses are useful to people who suffer from nearsightedness because the lenses can cause images of distant objects to be focused on the retina. Lenes allow images to be focused on the retina because of which charateristic of waves?
What is refraction.
300
A study was done to test the effectiveness of an ulcer medication. One group is given a sugar tablet, what is this group called?
What is the control group.
400
Which piece of equipment should be used to precisely measure 40.0 mL of a dilute sodium hydroxide solution?
What is a graduated cylinder
400
10% of the energy at one trophic level is passed to the next energy level, what happens to the energy not passed on or used to cary out life processes?
Given off as heat
400
Rust forms on an iron pipe after prolonged exposure to humid air this is what type of change?
What is a chemical change.
400
A cyclist moves at a constant speed of 5 m/s. If the cyclist does not accelerate during the next 20 seconds, how far will he travel?
What is 100 meters
400
A hypothesis is created to study the iron found in the topsoil on an island it states "Much of the iron found in the topsoil of the island was carried from Africa by huge dust clouds." What techniques would be used to determine this?
Use satellite photos to track dust clouds
500
Two students measured the length of the same stick, each using a different 30 cm ruler. One student reported a length of 22 cm, and the other reported a length of 8 cm. The most likely explination for the difference in the reported values is?
What is student error
500
The guppy is a species of small freshwater fish. Scientists observed that the average size of guppies in a pond decreased over a few years after a guppy predator was introduced into the pond. Why did the guppies change size?
What is Natural Selection.
500
Power plants that discharge warm water into rivers have a negative effect on aquatic life. This is because the high water temperature causes
the amount of dissolved oxygen gas in the river to come out of the solution at a faster rate.
500
What would cause the gravitational force between the Earth and sun to decrease?
An increse in the distance between the Earth and sun.
500
Similar sprigs of elodea were placed in four test tubes. Each test tube contained water with a different concentration of salt ranging from 0 to 3 percent. The length of each sprig was measured after 10 days. What question can be answered by this experiment
Does the amount of salt in the water affect elodea growth?
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