REVIEWED ANSWERS
Which of these is the best explanation of how a
smooth round stone became smooth?
A) It was in a stream for a long
B) it goes around
C) the stream can't go longer
D) there was never a stream
A) It was in a stream for a long
Any astronomical body that revolves around a larger
body is called
A) a poll
b) a satellite
c) a car
d) a stop light
a satellite.
When a lobster grows a claw to replace one that was
lost, the process is called
A) solid
B) hard
,C) regeneration.
D) stop
C) regeneration.
In chemistry, to be classified as an organic substance,
a substance must contain
a) babe powder
b) backing soda
C) Carbon Atoms
d) soda
C) Carbon atoms.
Which element does not contain any neutrons?
a) neutrons
B) hydrogen
C) code
D) slime
B) hydrogen
The chemical formula of a compound describes the
elements the compound contains and the
a) chemical stopper
b) slime
,c) ratio of elements in the compound.
d) ratio
C) ratio of elements in the compound.
What is the symbol for the hydroxyl ion?
a)0
b)98
c)H30
d) H20
Н30
Which of the following is a renewable resource?
a. gas
b. natural gas
c. fiber
d. sent
natural gas
How many atoms are in a single molecule of water
(H20)?
a. h30
b. h790
c. 3
d. 9
3
Regeneration in man is limited to
A. reproduction
B. fertilization
C. experimentation
D. healing of wounds
, healing of wounds.
When scientists measure a liquid's resistance to flow,
they are measuring the liquid's
a) lose electrons
b) diversity
c) viscosity
d) regeneration
viscosity.
When sodium atoms form sodium ions, they
A. share protons
B. gain neutrons
C. lose electrons
D. share protons
lose electrons.
A perpetual-motion machine can never be built
because it is not possible to eliminate
a) copy
b) stop
c) go
d) inertia
d) inertia,
A human skin cell divides by
A) cell
B) ADHD
C) time