CSET Multiple Subjects Subtest 2 Science;
Mathematics Questions and Answers
1.the smallest unit of an element that still holds the properties of the
element. Made up of protons, neutrons, and electrons
ANS atom
2.positively charged, located in the nucleus of the atom, has a mass
of 1AMU
ANS proton
3.neutral charge, located in the nucleus of the atom, has a mass of 1 AMU
ANS -
neutron
4.has a negative charge, orbits outside of the nucleus, has a mass of
1/1836 AMU
ANS electron
5.same number of protons and electrons
ANS balanced atom
6.atom with an unbalanced charge--either positive or negative.
ANS ion
,7.an atom with a different number of neutrons than the standard amount
for that element.
ANS isotope
8.the amount of matter that makes up an atom. Estimate in AMUs by
adding up the protons and neutrons.
ANS atomic mass
9.The number of protons an atom has. This defines the type of element.
ANS atomic number
10.the time it takes for half of the atoms of a particular substance to disinte-
grate.
ANS half-life
11.Method of measuring the ratio of Carbon 14 to Carbon 12. The longer
something has been dead, the "more" carbon 12 it has. Only accurate on
items
<50,000 years old.
ANS carbon dating
12.Elements are arranged in rows according to their atomic number, and
columns loosely according to their chemical properties.
ANS periodic table of el- ements
,13.a substance of 2 or more elements (ex. H20--water, CO2--carbon
dioxide, NaCL--table salt)
ANS compound
14.bonds a metal
with a non-metal. One atom loses an electron to form a positive ion, and
the other gains an electron to form a negative ion; creating an electrostatic
force that holds them together.
ANS ionic bond
15.a bond formed when atoms share 1 or more of their valence electrons.
ANS -
covalent bond
16.the chemical composition of a substance is altered.
Hint; fire is an example of a chemical change taking place.
ANS chemical change
17.something that starts a chemical change (ex. a spark)
ANS catalyst
18.material that can be separated by physical means into two or more
sub- stances
ANS mixture
, 19.homogenus mixture in which one substance is completely dissolved
into another substance (ex. salt water)
ANS solution
20.a mixture in which small particles are kept dispersed by agitation or
mol- ecular motion in a surrounding medium (ex. muddy river water)
ANS suspension
21.a change from one state to another without a change in the
chemical composition of a substance
ANS physical change
22.changes the volume of a substance
ANS compression
23.solid, liquid, gas, plasma
ANS states of matter
24.cannot be compressed; does not take the shape of its container
ANS solid
25.cannot be compressed; does take on the shape of its container
ANS liquid
Mathematics Questions and Answers
1.the smallest unit of an element that still holds the properties of the
element. Made up of protons, neutrons, and electrons
ANS atom
2.positively charged, located in the nucleus of the atom, has a mass
of 1AMU
ANS proton
3.neutral charge, located in the nucleus of the atom, has a mass of 1 AMU
ANS -
neutron
4.has a negative charge, orbits outside of the nucleus, has a mass of
1/1836 AMU
ANS electron
5.same number of protons and electrons
ANS balanced atom
6.atom with an unbalanced charge--either positive or negative.
ANS ion
,7.an atom with a different number of neutrons than the standard amount
for that element.
ANS isotope
8.the amount of matter that makes up an atom. Estimate in AMUs by
adding up the protons and neutrons.
ANS atomic mass
9.The number of protons an atom has. This defines the type of element.
ANS atomic number
10.the time it takes for half of the atoms of a particular substance to disinte-
grate.
ANS half-life
11.Method of measuring the ratio of Carbon 14 to Carbon 12. The longer
something has been dead, the "more" carbon 12 it has. Only accurate on
items
<50,000 years old.
ANS carbon dating
12.Elements are arranged in rows according to their atomic number, and
columns loosely according to their chemical properties.
ANS periodic table of el- ements
,13.a substance of 2 or more elements (ex. H20--water, CO2--carbon
dioxide, NaCL--table salt)
ANS compound
14.bonds a metal
with a non-metal. One atom loses an electron to form a positive ion, and
the other gains an electron to form a negative ion; creating an electrostatic
force that holds them together.
ANS ionic bond
15.a bond formed when atoms share 1 or more of their valence electrons.
ANS -
covalent bond
16.the chemical composition of a substance is altered.
Hint; fire is an example of a chemical change taking place.
ANS chemical change
17.something that starts a chemical change (ex. a spark)
ANS catalyst
18.material that can be separated by physical means into two or more
sub- stances
ANS mixture
, 19.homogenus mixture in which one substance is completely dissolved
into another substance (ex. salt water)
ANS solution
20.a mixture in which small particles are kept dispersed by agitation or
mol- ecular motion in a surrounding medium (ex. muddy river water)
ANS suspension
21.a change from one state to another without a change in the
chemical composition of a substance
ANS physical change
22.changes the volume of a substance
ANS compression
23.solid, liquid, gas, plasma
ANS states of matter
24.cannot be compressed; does not take the shape of its container
ANS solid
25.cannot be compressed; does take on the shape of its container
ANS liquid
