Chap 20 terms science

Question 1

orbit

Answer 1

the path an object follows as it moves around another object

Question 2

revolution

Answer 2

the orbit of one object around another object

Question 3

rotation

Answer 3

the spin of an object around its axis

Question 4

rotation axis

Answer 4

the line on which an object rotates

Question 5

Solstice

Answer 5

When earths rotation axis it tilted directly toward or away from the sun

Question 6

Equinox

Answer 6

When earths rotation axis is neither toward or away from the sun

Question 7

Maria

Answer 7

the large flat areas on the moon

Question 8

Phases

Answer 8

the portion of the moon ora planet reflecting light as seen from the sun

Question 9

Waxing phase

Answer 9

Phase of the moon during which more of the moons near side lit each night

Question 10

waning phase

Answer 10

Phase of the moon during which less of the moons near side lit each night

Question 11

Umbra

Answer 11

The central darker part of shadow where light is totally blocked

Question 12

Penumbra

Answer 12

the lighter part of a shadow where light is partially blocked

Question 13

Solar eclipse

Answer 13

the occurrence during which the moons shadow apears on earths surface

Question 14

Lunar eclipse

Answer 14

the occurrence during which the moons moves in earths shadow

Question 15

Tide

Answer 15

The periodic rise and fall of the oceans surface caused by the gravitational force blank earth and the moon and between earth and the sun