Question and Actual Answers 2025-
2026 Version.
c. plasma - Answer ionized particles on stars
a. solid - Answer definite shape and volume
f. chemistry - Answer study of matter
e. liquid - Answer definite volume, indefinite shape
b. physics - Answer study of energy
d. gas - Answer no definite volume or shape
energy, unstable, produce - Answer Although scientists believe that plasma could help solve
the ___________ problems of the world, plasma is very _____________ and is difficult to
___________ in a controlled setting.
ductile - Answer If a substance is ______________, it can be drawn into a wire.
malleable - Answer If a substance is _______________, it can be hammered into a sheet.
soluability - Answer If a substance dissolves easily, it has a high degree of ______________.
heterogeneous, homogeneous - Answer All substances are either _____________ or
____________ when classified according to their physical and chemical properties.
alphabetical, capital, lower case - Answer All elements are assigned an ____________ symbol;
this symbol is a _____________ letter; if more than one letter is needed, the second letter is
____________.
, oxygen - Answer O
carbon - Answer C
lead - Answer Pb
aluminum - Answer Al
hydrogen - Answer H
zinc - Answer Zn
compound, elements, solution - Answer The three categories of homogeneous substances are
_______________, ______________, and ______________.
element - Answer Of these three, a/an _________________ is the simplest.
106, 90, atmosphere, crust - Answer Most scientists agree that there are ______ elements; of
these, _______ are natural elements that can be found within the ___________ or
___________ of Earth.
atom - Answer A/An _______________ is the smallest particle of an element that still retains
its properties.
protons, neutrons, electrons - Answer The _____________, _____________, and
_______________ are the parts of an atom.
d. isotopes - Answer oxygen-16, oxygen-17
f. mass number - Answer total number of particles in an atom's nucleus
h. molecule - Answer bonded collection of two or more atoms