Nature of Science/Experimental Design
The variable that changes
Independent
Location and charge of the Proton
Nucleus
Positive
composed of only one kind of atom
Element
Heat always moves from ______________ to _____________until ________________
warmer to cooler areas until they are in equilibrium
density, volume, and mass
Physical property
The variable that is measured
Dependent
Location and charge of the electron
Electron Cloud
Negative
Composed of 2 or more different kind of atoms that are chemically combined
Compound
Energy transfer in a lamp
electrical to light/EM and thermal
Flammability
Chemical
How do the IV and DV effect each other
The DV changes according to the IV
How to determine the number of protons and electrons in an atom of an element
Atomic number
C6H12O6 Is composed of how many different elements
3
In a closed system when 100 joules of chemical energy is converted to electrical it will result in how many joules?
100
When you mix sugar in water and it dissolves you have witnessed which physical property?
solubility
Tells what happens every time under the same conditions
Law
How to determine the number of neutrons in an atom of an element
rounded atomic mass - atomic number
When salt is completely dissolved in water it is known as a
Homogeneous mixture
Energy transfer in a wind turbine: include what causes the wind
Solar to mechanical to electrical
In kool-aid the solvent is
Water
Explains why
Theory
Elements on the periodic table are grouped by
similar properties
A mixture where the different parts are easily separated
Heterogeneous
State the law of the conservation of energy completely
cannot be created or destroyed only changed in form.
Name 3 chemical properties
flammability, ability to ripen, reactivity, oxidation(rusting)