The action of the earth turning or spinning

around its center.

An ancient tool used to tell time during the

day. Part of it casts a shadow onto a flat

surface marked in hours. It works due to

Earth’s rotation.

The apparent shift of position of some

stars through the year.

Ours is made up of the sun, 8 planets and

their moons. The planets all orbit around

the sun and moons orbit around a planet.

A tool that provides evidence that the earth

is rotating. It is made of a heavy weight

hanging from a long wire which swings

back and forth. The direction of the

swinging ball appears to change due to

Earth’s rotation.

A dark shape made when an object blocks

light. When you stand outside, your body

blocks sunlight and that makes a shadow.

A group of stars that form a recognizable

shape such as the big dipper. Today there

are about 90 constellations.

A year with one additional day added. We

have leap years every 4 years because one

orbit of the earth around the sun is 365.25

days.

An area on Earth that has a specific time

that all people living there can set their

clocks to. There are 24 different time

zones.