Science Methods
The thing that stays the same in an experiment:
controlled variable
Protons have what kind of charge?
Positive
In an experiment, the thing you modify or change is called:
Manipulated Variable
In 440BCE, atoms were thought to indivisible. Who proposed this idea?
Democritis
What happens to Killer Whale females after they no longer produce offspring?
They become pod leaders.
A visual representation of your collected data is:
chart
graph
In the element Magnesium (12), how many electrons are orbiting in it's outer valence field?
2
What is the standard unit of measuring distance?
Meter
Who created the Planetary Model concept?
Beetles count for what percent of all animals on earth?
1/4.
You have 5 minutes available
How long do you have to finish your Do Now?
A combination of two or more atoms is called a . . .
Molecule (or compound)
The numbers or information you collect from the experiment or lab is called. . .
data
What did the Gold Foil Experiment prove?
Atoms are mostly empty space.
Shampoos contain a substance that makes bubbles to create the illusion that you're getting cleaner. What is this substance?
SLS
Sodium Lauryl Sulfate
What is the definition of the 2nd word in a CER statement?
Something that supports your claim and can be proved.
The Electron is how much smaller than the proton?
1 / 1,836th
An educated guess as to what will happened using logic is called. . .
hypothesis
There are subatomic particles in the nucleus. What are these particles called?
Proton
Neutron
If you could fall to the center of the earth, (falling at terminal velocity of 125mph), how long would it take you travel that distance?
2.5 days
Sharing your results after an experiment is called:
Communicating
Chadwick decided that the nucleus also contained a particle that had NO net charge. Who was the scientist that stated there was only protons in the nucleus? And what year was this neutral particle discovered?
Rutherford, 1932
Standard measurement of weight is in this unit:
Grams
In 1932, Scientists theorized that electrons orbit around a nucleus at a high rate of speed causing what looks like a cloud. This model is commonly called. . . ?
The Quantum Mechanical Model
The creator of the Periodic Table was from this country during what year?
Russia, 1869