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Chemistry
Scientific Method
Laws/Theories
Subatomic Particles
Measurements
100
The study of the composition of matter and the changes matter undergoes.
What is chemistry
100
_______ is the variable that you change during an experience and __________ is the variable that is observed
What is independent and dependent variables
100
Continental drift is caused by convection currents.
What is a theory.
100
Protons, neutrons, and electrons
What are subatomic particles.
100
__________ is the SI base unit for time
What is seconds.
200
The study of how matter behaves on a molecular and atomic level and how chemical reactions occur.
What is physical chemistry
200
"The scientist travels to a nearby beach and observes the conditions there. The scientist notes the taste of sea water and other factors such as waves, wind, air pressure, temperature, and humidity," is considered as what part of the scientific method?
Research or Observations
200
Species change over time. This is called evolution.
What is a law.
200
Atoms with the same number of protons, but different number of neutrons.
What are isotopes.
200
________ and ________ are the SI base units for volume.
What are cm^3 and mL.
300
__________ is the study of all chemical containing carbon. __________is the study of all chemical not containing carbon.
What is the organic and inorganic chemistry
300
"A scientist wants to find out why sea water freezes at a lower temperature than fresh water," is considered as what part of the scientific method?
What is deciding on a research question
300
Matter cannot be created nor destroyed. It can only change form.
What is a law.
300
Protons and electrons are equivalent to the __________ of an element
What is the atomic number
300
There are ________ minutes in 13.2 days
What is 19,008 minutes.
400
The area of study that focuses on the composition of matter.
What is analytical chemistry?
400
"After considering all this information, the scientist sits at a desk and writes, “If sea water has salt in it, it will freeze at a lower temperature than fresh water," is considered as what part of the scientific method?
What is a hypothesis
400
Heat can cause matter to change form by accelerating particles, leading to a phase change or chemical reaction.
What is a theory.
400
___________ has 57 neutrons.
What is ruthenium.
400
To convert Kelvin to Celsius, you will need to _________
What is substract 273.
500
Organic chemistry, inorganic chemistry, biochemistry, analytical chemistry, and physical chemistry
What are the areas of study within chemistry?
500
"The scientist continues, “I suggest that the reason sea water freezes at a lower temperature is that sea water contains dissolved salts, while fresh water does not," is considered as what part of the scientific method?
What is a conclusion
500
Evolution occurs because of natural selection.
What is a law.
500
These elements are within group 16 and have the equal number of protons, neutrons, and electrons.
What is sulfur and oxygen.
500
To convert Celsius to Kelvin, you will need to _________.
What is add 273.