2. Light rays travel in straight lines.
•Shadows occur when an objet blocks light from a light source.
3. • Opaque object: Some light is absorbed and the rest reflects
off.
• Translucent object: Some light can pass through but the rest
of the ligth will be reflected
• Transparent object: Ligth rays pass through it easily.
4. • The object must be opaque or translucent to make a shadow
• A transparent object will not make any shadow, because ligth
will pass straigh through it .
5. • If an object is moved closer to the light source, the shadow
gets bigger.
• If an object is moved further away from the light source, the
shadow gets smaller.
