About 70% of our atmosphere is composed of this gas, periodic symbol: N
What is NITROGEN?
100
Give your sweetie a ring made of this precious metal which is also an excellent conductor of electricity. Periodic Table Symbol: Au
What is gold?
100
At dinnertime, you might ask someone to pass the NaCl, or this, the common name of Sodium Chloride.
What is salt?
200
Matter has this property, which is what keeps us "glued" to the Earth.
What is gravity?
200
This particle orbits the nucleus and has a negative charge.
What is an electron?
200
Despite being highly flammable, without this gas, we would all die since it's what we breathe! Periodic table symbol: O
What is OXYGEN?
200
A werewolf can only be killed by a bullet made of this metal. Periodic Table Symbol: Ag
What is silver?
200
During a long afternoon of play, make sure to drink plenty of H2O, or this, the common name for the compund made when two Hydrogen atoms bond with an Oxygen atom.
What is water?
300
If you eat too much, you will increase this other property of matter.
What is mass?
300
These two types of particles comprise the nucleus of an atom. Some are negative and some are, well, neutral.
What are protons and neutrons?
300
This lighter-than-air gas is the reason balloons float up instead of drop to the ground.
What is HELIUM?
300
See a penny pick it up and all day you'll have just a little bit of this metal which is also what the Statue of Liberty is coated with. Periodic Table Symbol: Cu
What is Copper?
300
Plants need this for photosynthesis and it is the gas we exhale. CO2 is also believed to be trapping a lot of the sun's heat and causing climate change.
What is Carbon Dioxide?
400
This is the property that is the measurement of gravity's pull on a body of matter.
What is weight?
400
When atoms combine, they form these.
What are molecules?
400
This gas is used in bright signs because, when heated, it glows a beautiful reddish-orange. Periodic table symbol: Ne
What is Neon?
400
In 1991, Americans recycled 56.85 billion beverage cans made of this non-magnetic, very ductile metal. That's about 227 cans for every person in the nation! Periodic Table Symbol: Al
What is Aluminum?
400
Bring your shiny new bike inside when it rains, or it'll be covered with FeO, or Iron Oxide, in no time! This is the common name of FeO, or Iron Oxide:
What is rust?
500
This "evil twin" of matter is made in tiny amounts when atoms are smashed together in atom colliders. A teaspoon of it could destroy a whole city!
What is anti-matter?
500
A pure element is made up of this many kinds of atoms.
What is one?
500
This naturally occuring, but highly poisonous, gas, the heaviest of the noble gases, causes up to 21,000 lung cancer deaths each year.
What is radon?
500
Brass and steel are examples of this kind of substance made by combining two or more metals.
What are alloys?
500
Just a spoonful of C6 H12 O6 will make the medicine go down, because it is this energy-packed common compound.