Thinking Like a Scientist
Atomic Structure
Radioactivity
Origin of Elements
Wild Card
100
What is the last step of the scientific method?
Share your results
100
What are the three main particles found in an atom?
What are Protons, Neutrons, and electrons?
100
What are the three main forms of radioactivity decay?
Alpha, Beta, Gamma
100
What theory describes what happened at the beginning of the universe?
What is the Big Bang Theory
100
Version of an element with different amounts of neutrons.
What are isotopes?
200
How many sig figs are in 1250.0
What is 5?
200
What was Thompson's model called that described the atom as a positive area with negative regions scattered throughout?
What is the Plum Pudding Model?
200
Name three uses of nuclear energy/radioactivity?
What is electricity, medical imaging, sanitizing, smoke detectors, food sterilization, ect...?
200
What are the two most abundant elements in the universe?
What are hydrogen and helium?
200
Who first named the atom?
Who is Democritus?
300
Write the following number in scientific notation rounded to two Sig Figs:
65,694,304,423
What is 6.6 x 1010
300
What was Rutherford's gold foil experiment discover about the atom?
There is a positively charged nucleus
300
The process of using half-lives to determine the age of something.
What is radiometric dating?
300
What describes when waves stretch when an object moves away from you and compresses when it moves towards you?
What is the doppler effect?
300
Which elements are present in the unknown mixture? 
What is Hydrogen and Sodium?
400
Write the answer in the correct number of Sig Figs:
3.20 x 10,000
What is 30,000?
400
What did Thompson use to discover the presence of electrons in atoms in his experiments?
What are cathode ray tube?
400
Describe beta particles mass, charge and penetrating power?
What is low mass, negatively charged, and medium penetrating power?
400
We know many stars and galaxies are moving away from us because of...?
What is redshift?
400
If you started with 100 grams of a substance and had 25 grams after 100,000 years, what is the half-life of that substance?
What is 50,000 years?
500
Solve the following using the correct Sig Figs in your answer:
10.576 + 5.5
What is 16.1?
500
Atoms absorbed energy allowing electrons to do what that allows them to produce light?
What is move up an energy level?
500
If you find a fossil with 12.5% Carbon-14 and 87.5% Carbon-12 and the half life of Carbon-14 is 7,500 years, how old is the fossil?
What is 22,500 years?
500
What is the "glow" in the universe that does not have a specific source?
What is cosmic background radiation?
500
What nuclear process combines elements rather than splits them for energy?
What is Nuclear Fusion?