Atoms/Elements
tiny particles that are the building blocks of all matter
What is an ATOM?
a characteristic of matter that can be changed without changing matter itself
What is physical property?
A substance that dissolved in a liquid solvent to form a solution and the substance that can do the dissolving
What is a solute and a solvent?
two or more elements combine to form a
new substance.
What is a chemical change?
Sun centered, believed by ptolemy and aristotle.
Earth centered, believed by copernicus and galileo
what is geocentric model?
What is heliocentric model?
found in the nucleus, there are two parts, one that is positive and one that has no charge
What is the proton and the neutron?
how tightly pack the particles are in an object
What is density?
If something is to sweet it is said to have to much solute and note enough solvent
concentration
change the way something looks, but have
not made a new substance
What is physical change?
List the 8 moon phases in order
What is New Moon, Waxing crescent, 1st quarter, waxing gibbous, full moon, waning gibbous, last quarter, waning crescent?
two or more atoms chemically bonded. also contains at more than one element
What is a molecule? What is a compound?
the amount of matter or substance that makes up an object
What is mass?
It is a mixture that does not have all the same substances, they are different.
Substances that are all the same or similar in a mixtures.
What is heterogenous?
What is homogenous?
Lose or cause to lose luster
What is tarnish?
The hemisphere that is north of the equator
What is the northern hemisphere?
The ability to be stretched in wire
What is ductile?
anything that has weight and takes up space.
What is matter?
Sifting, filtration, flotation, evaporation and magnetism
What are the five separation methods?
The substances which participate in a
chemical reaction.
What is a reactants?
What is waxing?
hammered into sheets or forced into shapes
What is malleability?
the ability to dissolve into (become a part of) another substance
What is solubility
a quantity that can change or vary taking on different values
variable
The result of a chemical reaction.
What are products?
Getting smaller
What is waning?