What is dark?

• The absence of light

• Shadows

• Night time

Tags

NGSS.4-PS4-2

What is a light source?

• An object that reflects light.

• An object that creates a shadow.

• An object that emits light.

• An object that blocks light.

Which one of these is a light source?

• Moon

• Mirror

• Torch

• Candle

How can we protect our eyes from the sun?

• Hat

• Don't look directly at the sun

• Sunglasses

• All of them

How can we see the moon?

• It reflects light.

• It emits light.

• It is a light source

• All of them

What is the main source of light?

• The light bulbs

• The sun

• The moon

• The street lamps

What does opaque mean?

• An object that doesn't let light through

• An object that lets light through

• An object that reflects light

• An object that lets some light through

Tags

NGSS.MS-PS4-2

How is a shadow formed?

• When light is reflected

• When an opaque object blocks light

• When an object reflects light

• When you turn of the light source

When an opaque object gets closer to a light source, its shadow will get _______

• Disappear

• Stay the same

• Smaller

• Bigger

Which material is the best reflector?

• Plastic

• Paper

• Mirror

• Cardboard

Tags

NGSS.MS-PS4-2