HEAT

LIGHT

LIGHT ENERGY

ELECTRIC HEATER

LIGHT BULB

SOLAR PANEL

CANDLE

LIGHT YEAR

THERMAL ENERGY

WAVE

TO MELT

TO TRAVEL FROM

CONDUCTION

CONVECTION

RADIATION

MOLECULE

TO INCREASE

TO RISE UP

TO MOVE DOWN

ELECTROMAGNETIC WAVES

CONDUCTOR

INSULATOR

TO TRANSFER

METAL PAN

SUBSTANCE

BIMETALLIC STRIP

MAIZE KERNEL

CHANGES IN STATE

MELTING

EVAPORATION

EXPANSION

CHEMICAL CHANGES

PHYSICAL APPEARANCE

TO VIBRATE

OVEN

FAIRY CAKES

TO REVERSE

RADIATION

ULTRAVIOLET

LIGHT PHENOMENA

TRANSPARENT

TRANSLUCENT

OPAQUE

TO BLOCK

STRAIGHT LINE

SHADOW

ALUMINIUM FOIL

CARDBOARD

CLING FILM

LAS OF LIGHT

REFLECTION

REFRACTION

FLICKERING

TWINKLING

TO BOUNCE OFF

PRISMS

WRAPPED

TO ABSORB

TO VIBRATE

PERISCOPE

PROTRACTOR