Questions and Answers
All Answers by Brian Kross
Could you please explain density? What is it? What is the concept of D = M over V?
Where does the word atom come from and who first used this word?
What is a vacuum? Is it matter?
How many atoms are in the human body?
What do we use to measure mass?
How do people really know that atoms exist even though they can't see them?
What is one example of indirect evidence that scientists use to study an atom?
What is the smallest particle of matter known?
If atoms are 99.999999999999% empty space then why don't things pass right through them?
How do you prove air is matter?
What are the components of an atom? How much does each atom weigh?
Why don't atoms weigh anything?
What kind of charge does a proton have? And what kind of charge does a neutron have?
How many neutrons can you add to an atom without it getting unbalanced?
If everything around us is matter, what about germs?
Do liquids freeze at the same temperature? Why doesn't oil freeze?
What's the melting point of steel?
How do the elements on the element table get their chemical symbols?
What would you get if you combined one atom each from all the elements in the periodic table?
Is there anything colder than liquid nitrogen?
If energy is formed by a generator, how does the generator form the energy?
Which jobs use electromagnets?
Can you explain why the United States uses Fahrenheit instead of Celsius?
What is the fastest type of energy?
Are Democritus' theories of atoms still relevant today?
How big around is the tunnel at Jefferson Lab and what do you do in it?
How did you make so much neat stuff?
How did you make the detectors work in Halls A, B and C?
How much money does it cost a year to run Jefferson Lab? Do you get funds from an entrepreneurship?
Why are the Halls in bio-dome shapes?
Does an atom smasher really smash atoms?
Why is a non-permanent, but long lasting, magnet called a permanent magnet?
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