Speed, Distance, Time Worksheet.
A girl cycles for 3hrs at a speed of 40 km/h. What distance did she travel?
A train travels at a speed of 30mph and travel a distance of 240 miles. How
long did it take the train to complete its journey?
A car tra
Greek Model- _ Model
His theory: Matter could not be _ into smaller
and smaller pieces _, eventually the smallest
possible piece would be obtained.
This piece would be _.
He named the smallest piece of matter _
To Democritus, atoms were _
- Thomson called the negatively charged particles _
today known as _.
Since the gas was known to be neutral, having no charge, he
reasoned that there must be _ charged
particles in the atom. But he could never find them.
Have a _ charge
Be able to distinguish between isotopes and different elements
3 - Bohr Model Scorecard
We began by completing the remainder of a video dealing with The Atom.
Much of this is review. The video emphasizes how Bohr's picture of the atom
built on the ideas of Rutherford and Planck. Not mentioned in this particular
This could only mean that the gold atoms in the sheet were mostly
_. Atoms were _a pudding
filled with a positively charged material.
He knew that positive charges _ positive charges.
He concluded that an atom had _ center that _