Properties of Light
This is the fastest form of energy and travels in straight lines.
Sound is made when objects do this.
What is vibrate?
This natural source of light provides energy for Earth.
What is the sun?
We hear sounds using this body part.
This device uses electricity to produce light.
What is a light bulb?
These objects let all or most light pass through.
What is transparent materials?
The loudness of a sound depends on the size of these.
What are vibrations?
A mirror shows reflection because its surface is very this.
What is smooth?
An echo happens when sound does this.
This device helps people hear better by making sounds louder.
What is a hearing aid?
When light bounces off a surface, it is called this.
What is reflection?
Sound travels through solids, liquids, and this.
What are gases/air?
This happens when light is blocked and creates a dark area.
What is a shadow?
The part of the ear that vibrates when sound enters is the this.
What is the eardrum?
Excessive loud sounds can damage this part of your hearing system.
What is the eardrum?
When light bends as it passes from air into water, it is called this.
What is refraction?
This word describes how high or low a sound is.
What is pitch?
Light reflects best off this type of surface compared to rough surfaces.
What is a smooth, shiny surface?
This invention by Alexander Graham Bell changed communication using sound technology.
What is the telephone?
What is an example of natural light?
Campfire, lava, lightning, sunlight
This famous scientist studied light and helped explain gravity.
Who is Isaac Newton?
This term describes how fast or slow something vibrates, which affects the pitch of a sound.
What is frequency?
When you place a pencil in a glass of water and it appears bent, this is happening to the light.
What is refraction?
This is an example of noise pollution when celebrating Canada Day and other holidays.
This is what dolphins and bats use to discover objects in their environment.
What is echolocation?