What is the main source of light on Earth?
Sun
How does light travel?
In straight lines
What happens when light hits a mirror?
It reflects
What is the closest planet to the Sun?
Mercury
What happens when the Earth spins on its axis?
Day and night occur
What causes shadow?
when light is blocked by an object
What happens to shadows when the Sun moves?
They change size and direction)
What do we call the path a planet takes around the Sun?
Orbit
What happens when light is blocked?
A shadow is formed
What would happen if the Sun disappeared?
It would be dark and cold on Earth.
Why do we have day and night?
The Earth spins on its axis.
Why do shadows get shorter in the middle of the day?
The Sun is directly above us
How does light help us see objects?
It bounces off objects and into our eyes
How can we show that light travels in straight lines?
By using a ray diagram.
Why does the Sun appear to move across the sky?
Because the Earth is spinning.
Why does the Sun look bigger than other stars?
Because it is closer to Earth than other stars.
