Questioning the validity of ideas and information.
What is skepticism?
100
Any factor that can affect the outcome of an experiment.
What is a variable?
100
A structure that surrounds a cell, providing a barrier between the inside of the cell and the cell's external environment.
What is the cell membrane?
100
The smallest particle of an element that has all the properties of the element.
What is an atom?
100
An atom with eight protons.
What is oxygen?
200
A personal prejudice or slanted point of view that can influence the way a researcher interprets data.
Who is bias?
200
A variable that is purposely changed during an experiment.
What is an independent variable?
200
A large, membrane-bound organelle contained in eukaryotic cells.
What is a nucleus.
200
The dense center of the atom.
What is the nucleus?
200
The atomic weight of Carbon.
What is 12.011.
300
A series of steps that scientists use to guide the investigative process.
Example:
1. Ask a question
2. State a hypothesis
3. Plan and conduct an experiment
4. Analyze data
5. Draw conclusions
What is the scientific method?
300
The variable that changes in response to the independent variable.
What is a dependent variable?
300
A process through which the nucleus of a cell divides in such a way that the chromosome number is divided in half.
What is meiosis?
300
Atoms of the same element with different numbers of neutrons.
What are isotopes?
300
The atomic symbol for Carbon Dioxide.
What is CO2.
400
A suggested solution or possible answer for a scientific question. Scientists often come up with one of these before conducting an experiment.
What is a hypothesis?
400
In an experiment, this is the test group to which the experimental group is compared.
What is the control group?
400
The process by which some typoes of organisms capture the energy of sunlight and convert it to chemical energy that is stored in food.
What is photosynthesis.
400
The amount of time it takes for one-half of the nuclei in a sample of radioactive atoms to undergo nuclear decay.
What is a half-life?
400
What is the chemical symbol for water?
What is H20?
500
A test of a hypothesis.
What is an experiment?
500
Information described in words.
What is qualitative data?
500
The largest population of an organism that a given environment can support over time.
What is the carrying capacity?
500
The change of matter from the liquid state to the solid state.
What is freezing?
500
How many energy levels does an atom of aluminum have?