PERIODIC TABLE
This yellow element smells like rotten eggs and is used in matches.
What is sulfur?
This type of lens bends light inward and can make objects look bigger.
What is a convex lens?
This type of light is visible to human eyes.
What is visible light?
This natural source of light rises in the morning and sets at night.
What is the Sun?
what you hear when sound bounces off a wall or mountain.
WHAT ARE ECHOS?
This element is found in bones and teeth and helps plants grow.
What is phosphorus?
This type of lens bends light outward and can make objects look smaller.
What is a concave lens?
This type of light gives you a sunburn if you stay outside too long.
What is ultraviolet light?
This tool uses lenses and light to help us see faraway stars.
What is a telescope?
Echoes happen because sound travels in this form of energy.
What are sound waves?
This element is found in volcanoes and hot springs, giving off a strong smell.
what is sulfur
Lenses work because they bend light, a process scientists call this.
What is refraction?
This type of light is used in TV remotes to send signals.
What is infrared light?
This happens when light bends as it passes through water or glass.
What is refraction?
This animal uses echoes to fly and hunt at night.
What is a bat?
This gas makes up about 78% of the air we breathe.
What is nitrogen?
This tool uses two convex lenses to help us see tiny objects like cells.
What is a microscope?
This type of light has the shortest wavelength and is used in medical scans.
What are X-rays?
This happens when light bounces off a mirror.
What is reflection?
When the sound waves bounce back, bats can tell the size and distance of this.
What is an object or prey?
This element is turned into ammonia by scientists to make fertilizers for crops.
What is nitrogen?
Eyeglasses use lenses to correct this problem when light doesn’t focus properly on the retina.
What is blurry vision (or poor eyesight)?
This type of light has the longest wavelength and is used in radios.
What are radio waves?
This natural event shows all the colors of light after rain.
What is a rainbow?
Scientists call the way bats use echoes to navigate and hunt by this name.
What is echolocation?