P4 Light & Shadows

Which source of light is natural?

• fireworks

• lightbulb

• lightning

• headlights

Which is NOT a source of light?

• firefly

• ball

• sun

• torch

Light travels in..

• a curve

• circles

• a straight line

Which one of the following pairs of items allows only some light to pass through them?

• Waxed paper and clear plastic

• Tracing paper and clear glass

• Frosted glass and tracing paper

• Whiteboard and hard cardboard

Tags

NGSS.MS-PS4-2

Smooth surfaces _______ a lot of light.

• reflect
• bend
• absorb
• twist

Tags

NGSS.MS-PS4-2

An opaque object means that ...

• light passes through it

• no light passes through it

• some light passes through it

• you can see through it

Shadows are shortest ...

• at night

• in the morning

• in the middle of the day

• in the evening

Tags

NGSS.MS-ESS1-1

A shadow is formed when...

• an object blocks the light

• an object lets light pass through

• an object is above light

Which one of the following graphs shows how the length of the shadow of a flagpole changes at hourly intervals on a sunny day?

• 
• 
• 
• 

Tags

NGSS.MS-ESS1-1

We can only see objects because...

• a light source falls on the object and the light is reflected to our eyes.

• our eyes reflect light to the objects.

• the objects reflect light to the light source which shines it to our eyes.