Unit F - List A

Question 1

data

Answer 1

Information gathered from an experiment; firsthand evidence from the 5 senses or from machines that extend our senses.

Question 2

phenomenon

Answer 2

An event related to how the world and universe work.

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 an object spins, or rotates. Earth rotates around an axis that runs straight through Earth from the North Pole to the South Pole.

Question 5

plausible

Answer 5

Consistent with evidence.

Question 6

rotate

Answer 6

To turn or spin around an axis.

Question 7

rotation

Answer 7

To turn or spin around an axis.

Question 8

time zone

Answer 8

A region throughout which the same standard time is used. (There are 24 time zones in the world at approximately by meridians at 15 degrees intervals, an hour apart.)

Question 9

equator

Answer 9

An imaginary circle that divides Earth into two halves called the Northern Hemisphere and Southern Hemisphere.

Question 10

hemisphere

Answer 10

One half of a sphere. (The half of Earth that is north of the equator is the Southern Hemisphere.

Question 11

orbit

Answer 11

Another term for revolution: A complete circle made by a planet around a sun or by a moon around a planet (orbit.)

Question 12

revolution

Answer 12

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

Question 13

revolve

Answer 13

To travel around another object in a circular or elliptical path.

Question 14

crescent Moon

Answer 14

The phase of the Moon in which the lit portion of the Moon visible from Earth’s surface is less than a half-circle (crescent shape). Crescent moons occur right after and right before the new Moon.

Question 15

full Moon

Answer 15

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 Earth’s surface and appears as a full circle.

Question 16

first-quarter Moon

Answer 16

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 Earth’s surface is a half-circle.

Question 17

gibbous Moon

Answer 17

A phase of the Moon before or after it is full, when more than half of its disk is illuminated.

Question 18

last-quarter Moon

Answer 18

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 Earth’s surface is a half-circle.

Question 19

lunar cycle

Answer 19

The revolution of the Moon around Earth that produces the changing phases of the Moon. One complete lunar cycle takes about 29.5 days.

Question 20

new Moon

Answer 20

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’s surface.

Question 21

waning

Answer 21

The phases of the Moon when the illuminated portion visible from Earth is decreasing (between the full and New Moon.)

Question 22

waxing

Answer 22

The phases of the Moon when the illuminated portion visible from Earth is increasing (between the new full Moon.)