the earth-moon-sun system

Question 1

earths magnetic field protects us from what?

Answer 1

harmful radiation from the sun

Question 2

earth orbits…

Answer 2

the sun

Question 3

earths physical properties

Answer 3

diameter, circumference, distance

Question 4

does the location of earths magnetic poles change?

Answer 4

yes due to the crust and mantle

Question 5

what is the most harmful radiation from the sun

Answer 5

solar wind

Question 6

what is the aurora caused by

Answer 6

electrical currents that add energy to molecules of gas in the atmosphere

Question 7

the earth is different from other planets because…

Answer 7

it can support life

Question 8

earth and … are the same size

Answer 8

Venus

Question 9

Venus is very hot because…

Answer 9

it has a large amount of carbon dioxide

Question 10

when a planets atmosphere traps heat

Answer 10

it is called the greenhouse effect

Question 11

the moon and sun measure what

Answer 11

time in days and years

Question 12

imaginary line drawn on earths used as a worldwide system for measuring time

Answer 12

prime meridian

Question 13

the earth moves on a path called…

Answer 13

the ecliptic

Question 14

the apparent movement of the sun is caused by…

Answer 14

the earths rotation

Question 15

3 things the seasons change is caused by

Answer 15

the rotation, revolution, and tilt of the earths axis

Question 16

when does the sun reach an equinox

Answer 16

when it is directly above the earths axis

Question 17

solstice is the point at which the sun reaches…

Answer 17

its greatest distance north or south of the equator

Question 18

how are the tides caused by the moon

Answer 18

due to the pull of the moons gravity

Question 19

revolution

Answer 19

measures years

Question 20

rotation

Answer 20

spinning of the earth on its axis