Year 3 Light and Shadow Unit Assessment

Which of these is NOT a light source?

• Lightbulb

• Computer Screen

• Star

• Moon

Which of these is a natural light source?

• Torch

• Lamp

• Sun

• TV

In which direction does light travel?

• A straight line

• In curly waves

• Any way it wants

• In zigzags

If an object blocks the light's path, what happens?

• Nothing

• The object burns

• The light passes through it

• A shadow is formed

If an object is opaque, what kind of shadow will it produce?

• A dark shadow

• A light shadow

• No shadow

If an object is transparent, what kind of shadow will it produce?

• A dark shadow

• A light shadow

• No shadow

At what time of day would a shadow be shortest?

• Midnight

• Dawn

• Midday

• Dusk

Which of these objects reflects the most light?

• A sofa

• A tree

• A brick

• A mirror