Properties and Elements
Physical or chemical property:
The lack of ability to rust
Chemical
How elements are organized on the periodic table (the number)
Atomic number
where should broken glass be disposed of
broken glass container
Name the independent variable:
Will my grade improve if I write the formula, show the substitution, and then solve the problem instead of just writing the answer?
write the formula, show the substitution, and then solve the problem
Physical or chemical property:
The ability to sublimate
physical
ALL PHASE CHANGES ARE PHYSICAL
Columns (vertical) on the periodic table
Groups
If an experiment requires safety goggles, when is it safe to remove them?
When everything is cleaned up
Dependent variable:
Is going vegan good for your health?
your health
Energy is (lost/gained) in the phase change from liquid to gas
gained
Rows on the periodic table
Periods
True claim, false claim, or opinion:
Most books by Charles Dickens are fun to read.
opinion
Independent variable:
Is there more likely to be earthquakes near convergent boundaries?
plate boundary
Two ________ have the same number of protons but a different number of electrons
Ions
The model of the atom that introduced positively charged particles in the dense center of the atom
Rutherford
True claim, false claim, or opinion:
The Earth is flat
false claim
Control variable:
Does asprin or tylenol help more with migraines?
Person, amount, etc.
Two ______ have the same number of protons but a different number of neutrons
Isotopes
The model of the atom that described electrons scattered throughout a ball of positive charge was proposed by
Thomson
True claim, false claim, or opinion:
You have had a whole week in class to prepare for the midterm.
True claim
Dependent variable:
Are electric cars better for the environment overall?
Environmental impact