Experimental Design
Mass and Energy
Characteristics
Chemical and Physical Reaction
Radioactivity
100
Fair Test
What is an experiment with only one independent variable.
100
Mass
What is the amount of matter in an object?
100
Freezing point is when the temperature is decreasing, where as melting point is when the temperature is increasing.
What is the difference between freezing point and melting point?
100
An interaction that creates a new substance or breaks a substance down. Hint: Not a Radioactive Reaction
What is a chemical interaction?
100
When a substances atom structure is altered.
What is radioactive interaction?
200
Variable.
What is something in an experiment that changes or can be changed?
200
Scientific tool without springs used to measure the mass of an object.
What is a balace?
200
The characteristic property of some metals that proves it is a good conductor of electricity.
What is electric conductivity?
200
Adding salt into water. Physical or chemical?
What is a physical reaction?
200
The year that x-rays were discovered
What is 1892?
300
Manipulated Variable (Independent Variable)
What is a variable deliberately changed by the scientist?
300
Type of energy that takes a long time to retrieve.
What is non renewable energy?
300
A property that can be used to indentify a given substance.
What is characteristic property?
300
When a liquid breaks down substance into very small pieces?
What is dissolve?
300
The radioactive element that causes problems in basements.
What is radon?
400
Responding Variable ( Dependent Variable)
What is a variable that responds to the change of the manipulated variable?
400
An energy source that cannot be renewed in our lifetime.
What is non renewable energy?
400
Mass divided by volume.
What is the equation to find the density of an object?
400
A mixture that contains as dissolved solute as much as possible at a given temperature.
What is a saturated solution?
400
Radioactive rays that is stonger with higher altitude.
What is cosmic rays?
500
Controlled Variables.
What are the variables that are kept the same throughout the experiment?
500
When heat is transfered between two objects without either object touching the other
What is Infrared Radiation?
500
The amount of solute that will disolve in a given solvent.
What is solubility?
500
Original substance in a chemical reaction?
What is the reactant?
500
the main health problem caused by radiation in basements
What is lung cancer
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