Shadows
What shadows are caused by.
What are a solid object and a light source?
The earth has rotated so that our side faces the sun.
What is day time?
An instrument used to tell the time by using the Sun.
What is a sundial?
The shape of the Sun, Earth and Moon.
What is a sphere?
The action of moving in a circle round an axis.
What is rotation?
It happens when light is blocked.
What is a shadow?
The earth has rotated so that our side is facing away from the sun.
What is night time?
Without this you cannot use a sundial.
What is the Sun?
This causes the Earth to have seasons.
What is Earth's tilt?
The curved path of a celestial object.
What is an orbit?
The time of day when shadows are smallest.
What is noon or the middle of the day?
Light from the sun falls on this much of the spinning earth.
What is half?
Direction the gnomon must face in the southern hemisphere in order for the sundial to work accurately.
What is South?
The time it takes the Earth to make one revolution.
What is one year / 365 days?
A single orbit of one object around another.
What is a revolution?
The time of day when shadows are the longest.
What is morning or afternoon?
The time it takes the earth to make one rotation.
What is 24 hours?
This part of a sundial casts the shadow.
What is a gnomon?
The approximate distance between the Sun and Earth.
What is 150,000,000 kms?
An imaginary line on which something rotates.
What is an axis?
The largest shadow on Earth.
What is night time?
The cause of the moon shining.
What is the reflection of the Sun?
The reason that shadows "move" from west to east during the course of the day.
What is Earth's rotation?
The time it takes the Moon to orbit the Earth.
What is approximately 28 days?
Considered in relation or in proportion to something else.
What is relative size?