Day and Night
Make a Sundial
Submitted by NSOJenny on Wed, 22/02/2023 - 11:53Count the Stars!
Submitted by NSOJenny on Tue, 31/01/2023 - 12:37Why Do We Have Day and Night?
Submitted by admindev on Tue, 29/03/2022 - 08:45Dydd a Nos
Wedi’i anelu at ddisgyblion 7-11 oed, mae’r gweithgaredd hwn yn rhoi cyfle ymarferol i'r disgyblion i ddysgu am y dydd a’r nos. Gan ddefnyddio pêl o play-doh a thortsh, bydd y disgyblion yn darganfod sut mae cylchdro'r Ddaear yn achosi’r dydd a’r nos.
World View of Day and Night
We experience day and night because the Earth spins around each day. The Earth's rotation makes it look like the Sun and stars move across the sky.
Day and Night
Credit: Chris Gin
Earth Rotation
Credit: Wikiscient
The Earth is always spinning on its axis. It takes 24 hours to spin around once, so it rotates once a day. The Earth spins at over 1,500 km an hour! That's more than 4 times faster than a Formula 1 car racing at top speed!
