Food
The majority of people in the world cannot properly digest this sugar that is found in dairy products.
What is lactose?
This metal in mineral form is essential for strong bones.
What is calcium (Ca)?
A layer of this gas, found on average 15 miles above Earth's surface, protects us from ultraviolet radiation from the sun.
What is ozone (O3)?
Tony Stark's alter ego
Who is Iron Man?
My favorite, most sentimental necklace was ruined when it got splattered with this metal that is liquid at room temperature.
What is mercury (Hg)?
This is the coffee ingredient that people trust to help them wake up in the morning.
What is caffeine?
This hormone is necessary for our cells to absorb glucose out of our bloodstream.
What is insulin?
This is the chemical in plants that absorbs light to provide energy for photosynthesis.
What is chlorophyll?
The name of the fictional mineral that saps Superman's strength is taken from the name of this real elemental gas.
What is krypton (Kr)?
A small metal trash can may have saved my life when it broke the fall of a large tank of this gas that we need to inhale for our survival.
What is oxygen (O2)?
Oranges will cure scurvy because they contains ascorbic acid, which is more commonly known as this.
What is Vitamin C?
This chemical found in tobacco products increases heart rate and dopamine production in the brain.
What is nicotine?
Out of ammonia, carbon dioxide, and methane, the one that is NOT considered a greenhouse gas.
What is ammonia (NH3)?
This man-made, radioactive element is needed to fuel the time machine in Back to the Future.
What is plutonium (Pu)?
It was a painful experience when I accepted a dare to inhale 6 M hydrochloric acid, which has this chemical formula.
What is HCl?
Whether produced by yeast or baking soda/powder, this gas makes bread and baked goods rise.
What is carbon dioxide (CO2)?
Your body uses this well-known biochemical to make hormones like cortisol, estrogen, testosterone, and Vitamin D.
What is cholesterol?
Earth's core is composed of molten iron and this other metal.
What is nickel (Ni)?
Nirvana has an album and a song titled after this smallest of all the metals.
What is Lithium (Li)?
My research building was evacuated when the ventilation system failed, and my experiment released this gas that smells like rotten eggs.
What is hydrogen sulfide (H2S)?
Vinegar is a 5% solution of this acid in water.
What is acetic acid?
Common table salt has this chemical added to it in order to prevent thyroid problems like goiter in humans.
What is iodide?
The most highly produced chemical worldwide every year is this acid that is used for fertilizers, car batteries, and many other industrial applications.
What is sulfuric acid (H2SO4)?
In Star Trek, Mr. Spock has green blood because it contains this metal instead of iron.
What is copper (Cu)?
I needed to use the eye wash station when my eye was squirted with this flammable liquid that is used in nail polish remover
What is acetone?