Name 3 types of energy
Thermal (heat), light, sound
How does light travel?
Light travels in straight lines
Light travels in bent lines
Why is the shadow "short" when at noon (lunchtime)?
The sun is directly above the object
What causes a shadow?
A shadow forms when an object blocks light.
Can you make a shadow with no light?
No, shadows need a light source and an object. Shadows show the shape of an object.
What is the english word for "Tia sáng"?
"Tia sáng" = Light rays
