Unit F - List A

Question 1

Data

Answer 1

Information gathered

Question 2

phenomenon

Answer 2

an event related to how the world and universe works

Question 3

model

Answer 3

any representation of a system or its components to help one study and understand how it works

Question 4

axis

Answer 4

the imaginary line around which and object spins, or rotates. Earth rotates around an axis that runs straight through Earth from the north pole to the south pole.

Question 5

crescent moon

Answer 5

the phase of the moon in which the lit portion of the moon visible from earths surface is less than a half-circle. Crescent moons appear right after and before a full moon.

Question 6

equator

Answer 6

an imaginary circle that divides Earth into two halves called the northern hemisphere and southern hemisphere.

Question 7

first quarter moon

Answer 7

the phase of the moon occurring about seven days after the new moon in which the lighted portion of the moon that is visible from earths surface is a half circle

Question 8

full moon

Answer 8

the phase of the moon that occurs about 14 days after the new moon in which the complete lighted portion of the moon is visible from earths surface and appears as a full circle

Question 9

gibbous moon

Answer 9

a phase of the moon before or after it is full, when more than half of its disk is illuminated

Question 10

last quarter moon

Answer 10

the phase of the moon that occurs about 7 days after the full moon in which the lighted portion of the moon that is visible from earths surface is a half circle

Question 11

lunar cycle

Answer 11

the revolution of the moon around earth that produces the changing phases of the moon. one complete cycle takes about 29.5 days.

Question 12

new moon

Answer 12

the phase of the moon occurring about 14 days after the full moon in which none of the lighted portion of the moon is visible from earth.

Question 13

orbit

Answer 13

another term for revolution

Question 14

plausible

Answer 14

consistent with evidence

Question 15

revolution

Answer 15

a complete circle made by a planet around a sun or by a moon around a planet (orbit)

Question 16

revolve

Answer 16

to travel around another object in a circular or elliptical path

Question 17

rotate, rotation

Answer 17

to turn or spin around an axis

Question 18

waning

Answer 18

the phases of the moon when the illuminated portion visible from earth is decreasing

Question 19

waxing

Answer 19

the phases of the moon when the illuminated portion visible from earth is increasing

Question 20

time zone

Answer 20

a region throughout which the same standard time is used.

Question 21

hemisphere

Answer 21

one half of a sphere