science

Question 1

rotation

Answer 1

the act of spinning around an axis; for example, how the
Earth spins on its axis.

Question 2

revolution

Answer 2

the movement of one object around another; for example,
how the Earth travels around the Sun.

Question 3

axis

Answer 3

an imaginary line that an object rotates around; for example, the
Earth's axis runs from the North Pole to the South Pole.

Question 4

gravity

Answer 4

the force that pulls objects toward each other; for example,
gravity keeps us on the ground and pulls objects down.

Question 5

exert

Answer 5

to apply or bring something into use; for example, to exert force
means to push or pull with strength.

Question 6

orbit

Answer 6

the curved path that an object takes as it moves around another
object in space; for example, the path the Earth takes around the Sun.

Question 7

equator

Answer 7

an imaginary line that divides the Earth into the Northern and
Southern Hemispheres; it is located halfway between the North and
South Poles.