What Can Light Do?

1st Grade

LightLight

► Light is a kind of energy.Light is a kind of energy.

Light from the sun lights up the

world around us.

Lamps give off light…

and fire, too!!

Light lets us see.

Light can move…Light can move…

► It can pass through It can pass through clear objects.clear objects.

► It passes through It passes through glass.glass.

WHAT IS THE

MAIN THING LIGHT DOES

FOR US?

SHADOWSSHADOWS

► A shadow is a dark place made when an A shadow is a dark place made when an object blocks light. object blocks light.

► When can you see many shadows?When can you see many shadows? Sunny daySunny day Cloudy dayCloudy day Rainy dayRainy day

Lesson ReviewLesson Review

► Light is a kind ofLight is a kind of HeatHeat EnergyEnergy ParticleParticle

VOCABULARYVOCABULARY

► Use the words Use the words lightlight and and shadowshadow to to telltell about about this picture.this picture.

Do you think all things can Do you think all things can make shadows?make shadows?

►YesYes►NoNo

Clear things don’t make shadows because Clear things don’t make shadows because something clear doesn’t block light.something clear doesn’t block light.

Name something that light Name something that light could pass through.could pass through.

► Tell Tell why why you think you think it could.it could.

What are some things that give What are some things that give off light?off light?

► The sunThe sun► FireFire► Light bulbsLight bulbs► FlashlightsFlashlights► All includedAll included► Not includedNot included

What causes a shadow?What causes a shadow?

► The blocked light.The blocked light.► Sunlight passes Sunlight passes

through an object.through an object.► Not included.Not included.

How does light help us?How does light help us?

► Gives us heat.Gives us heat.► Light helps us see.Light helps us see.► Not included.Not included.

What can light do?What can light do?

► Light can pass Light can pass through some through some materials.materials.

► Light can form Light can form shadows.shadows.

► All includedAll included► Not includedNot included

Why do you think some cars Why do you think some cars have dark tinted window glass?have dark tinted window glass?

► So they look awesome.So they look awesome.► The tinted glass blocks out some light.The tinted glass blocks out some light.► Not included.Not included.

What difference does the What difference does the tinted tinted windowswindows make make insideinside the car? the car?

► Darker and coolerDarker and cooler► Lighter and warmerLighter and warmer► Not includedNot included

ShadowsShadows

►Why do you see many shadows on a Why do you see many shadows on a sunny day?sunny day?

►Why can’t you see shadows on a dark Why can’t you see shadows on a dark night?night?

Observe the photograph.Observe the photograph.

► What light source is What light source is being blocked?being blocked?

► What objects are What objects are blocking the sun to blocking the sun to make shadows? make shadows?

► What other things What other things might you see might you see outdoors that create outdoors that create shadows?shadows?