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Some vocabulary words they should know:
1.
Matter
-  Matter
is commonly referred to as the substance of which physical objects are
composed. In
physics, it is everything that is constituted of
elementary
fermions.
Philosophically, matter constitutes the formless substratum of all
things, which exists only potentially and from which reality is produced. In
the sense of
content, matter is also used in contrast to
form.
2.
Mass
is the amount of matter an object has. We often use a triple-balance beam to
measure mass.
3.
Volume -
the
amount of space occupied by matter - solid,
liquid, or
gas.
Objects occupy space within a gas, fluid or even within a solid.
4.
Density -
ratio
of the
mass of a substance to its volume,
expressed, for example,
in units of grams per cubic centimeter or pounds per cubic foot.
5.
physical property
-
6.
solution -
Solutions
can be solids dissolved in liquids. They could also be gases dissolved in
liquids (such as carbonated water). There can also be gases in other gases
and liquids in liquids. If you mix things up and they stay at an even
distribution, it is a solution. You probably won't find people making
solid-solid solutions in front of you.
7. element
- A
chemical element, often called simply element, is the
class of atoms
which contain the same number of
protons.
8.
atom -
An atom (Greek
άτομον from ά: non and τομον: divisible)
is a submicroscopic structure found in all ordinary
matter. It
is the smallest unit of an
element to retain all the chemical properties of that element. The word
atom originally meant a smallest possible particle of matter, not
further divisible. Later, the objects that had been called atoms were found
to be further divisible into smaller
subatomic
particles, but the word atom nonetheless continues to refer to them.
9.
suspension
- In
chemistry,
a suspension is a
colloidal
dispersion (mixture) in which a finely-divided species is combined with
another species, with the former being so finely divided and mixed that it
doesn't rapidly settle out. In everyday life, the most common suspensions
are those of
solids in
liquid water.
http://en.wikipedia.org/wiki/Suspension_%28chemistry%29
10.
emulsion -
An emulsion is a mixture of two
immiscible (unblendable) substances. One substance (the dispersed phase)
is
dispersed in the other (the continuous phase). Examples of emulsions
include butter
and
margarine,
mayonnaise, the photo-sensitive side of
film
stock, and
cutting fluid for
metalworking. In butter and margarine, a continuous lipid phase
surrounds droplets of water (water-in-oil emulsion). Emulsions tend to have
a cloudy appearance, because the many phase interfaces (the boundary between
oil and water is called the interface) scatter light that passes through the
emulsion. |
Some more vocabulary words they should know:
11. solution -
A
homogeneous mixture whose composition may vary within certain limits
(e.g., air), but is a single-phase mixture composed of a
solute and a
solvent.
Solute particles are small molecules and ions between 1 and 100 Å in
diameter.
12.
alloy
-
An alloy is a material
made up of two or more metals. Alloys are designed and produced have
certain specific, desirable characteristics, including strength,
formability, and corrosion resistance.
13.
nucleus -
The nucleus of an
atom is the
very dense region in its center consisting of
protons
and
neutrons. The size of the nucleus is much smaller than the size of
the atom itself, and almost all of the mass in an atom is made up from
the protons and neutrons with almost no contribution from the electrons
14.
electron -
A
fundamental
subatomic particle which carries a negative
electric charge.
15. proton -
In
physics,
the proton (Greek
proton = first) is a
subatomic particle with an
electric charge of one positive
fundamental unit (1.602 × 10−19
coulomb)
and a mass of 938.3 MeV/c2
(1.6726 × 10−27 kg),
or about 1836 times the mass of an
electron. The proton is observed to be
stable, with a lower limit on its
half-life of about 1035 years, although some theories
predict that the
proton may decay. The proton and neutron are both
nucleons.
16.
neutron -
In
physics,
the neutron is a
subatomic particle with no net
electric charge and a
mass of
939.573 MeV/c²
(1.6749 × 10-27 kg, slightly more than a
proton).
Its
spin is ½. Its
antiparticle is called the
antineutron. The neutron and proton are instances of a
nucleon.
17.
atomic number
-
The atomic number (Z)
is a term used in
chemistry and
physics
to represent the number of
protons
found in the nucleus of an
atom. In an
atom of
neutral charge, the number of
electrons also equals the atomic number.
19.
metal -
In chemistry, a
metal (Greek:
Metallon) is an
element that readily forms
ions (cations)
and has
metallic bonds, and metals are sometimes described as a lattice of
positive ions (cations) in a cloud of electrons. The metals are one of
the three groups of elements as distinguished by their ionisation and
bonding properties, along with the
metalloids and
nonmetals. On the
periodic table, a diagonal line drawn from
boron (B)
to
polonium (Po) separates the metals from the nonmetals. Elements on
this line are metalloids, sometimes called semi-metals; elements to the
lower left are metals; elements to the upper right are nonmetals.
19.
compound -
In
chemistry, a
compound (chemical compound) is a chemical combination of
two or more elements. See
list of compounds.
20.
molecule -
A molecule is the smallest
particle of a pure
chemical substance that still retains its chemical
composition and properties. The science of molecules is called
molecular
chemistry or
molecular physics, depending on the focus. Molecular chemistry
deals with the laws governing the interaction between molecules that
results in the formation and breakage of
chemical bonds, while molecular physics deals with the laws
governing their structure and properties. In practice, however, this
distinction is vague.
Experimental Methods |
Students will be doing many experiments in
these 2 chapters and will be required to write several lab reports.
note taking, and 
Metric
System
Used in nearly every
country in the world the Metric System was devised by French scientists in
the late 18th century to replace the chaotic collection of units then in
use.
GENERAL SCIENCE
Science
Reporting for Kids
