Mad Scientist KEY

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MAD SCIENTIST ---- MATTER and ENERGY
A ______ is a mixture
that looks the same
everywhere even
under a microscope.
a. Solution
b. Oil and water
c. Chex - mix
d. salad
Your teacher mixes
together two clear
liquids. Together the
two liquids turn
purple and bubbled.
You most likely just
witnessed a:
a. Transfer of
energy
b. Physical
reaction
c. Chemical
reaction
d. Force
In a __________
reaction, two
substances react to
form a new
substance.
a. Physical
b. Chemical
c. Kinetic
d. potential
Stored energy is
called ____________.
In a chemical reaction
there may be a:
a. Color change
b. Formation of a
gas
c. Heat change
d. All of the
above
What form does the
sun’s energy have
when it reaches
Earth?
a. Visible Light
b. Infrared light
c. Ultraviolet
light (uv)
d. All of the
above
All of the following
are conductors of
heat EXCEPT
a. Wood
b. Glass
c. Copper
d. Air
An object’s tendency
to resist change in
motion is its
________.
Gravity is a _______.
a. Velocity
b. Speed
c. Force
d. Weight
In winter, ice and
snow may cover the
concrete sidewalk,
making it slippery. It
is harder to walk
because ice lowers
this force:
A. Gravity
B. Friction
C. Propulsion
D. Inertia
a.
b.
c.
d.
Potential
Kinetic
Chemical
Light
A push or pull that
acts on an object is
called a ________.
a. Inertia
b. Work
c. Force
d. energy
a.
b.
c.
d.
Inertia
Work
Force
energy
An object that is
moving has_______.
a. Chemical
energy
b. Potential
energy
c. Kinetic energy
d. A charge
How can a force
affect a moving
object?
A . it can change its
velocity only
B. it can change its
velocity and its
direction
c. it can change its
velocity and its mass
d. it can change its
velocity direction and
its mass
Which of these has
energy?
a. A flying kite
b. A molecule
c. A speeding
train
d. All of the
above
Some chemical
reactions produce
heat. Where does the
energy come from?
a. Energy is
created.
b. Energy is
taken from
the
atmosphere
c. Kinetic energy
is transformed
into heat.
d. Chemical
energy is
transformed
into heat.
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