- - Most of water
- - Most abundant substance in the universe
- - Deuterium is an isotope of it
- - Lightest element
- - Some of the water on the top of the table is the first one you'll see
- - Lightest gas
- - Lightest element on the periodic table
- - Colourless gas, the lightest known element
- - Lightest known substance
- - Lightest of all known substances.
- - The lightest of all known substances.
- - Element of vast power.
- - Focus of scientific limelight.
- - Light gas
- - Light element?
- - Lightest of all gases
- - Bananas go dry inside chicken, creating gas
- - Gas with the atomic number 1
- - the most common element in the universe.
- - Most abundant element in the universe
- - Phish "I Am ......"
- - No. 1 on the table
- - No 1 in the periodic table
- - Chemical element with atomic no. 1 in the periodic table
- - Colourless gas
- - Gas from chicken: nuts go dry inside
- - Element that's essential in alchemy?
- - Gas from chicken in which nuts go dry
- - Element, hot, possibly gone dry
- - The most abundant element in the universe
- - This element's atomic number is 1
- - Motown founder's back, embraced by lady, number one in some charts?
- - The most abundant chemical element in the universe
- - Pig swallows dry mixture from scenic centre - it's gas!
- - Rocket fuel component
- - First item on a certain table
- - It's always number one
- - Most abundant element
- - One on a certain table
- - #1 on a table
- - Element potentially destructive.
- - Typical univalent element.
- - 1 in a table setting
- - Odorless gas
- - Element in water
- - Common gas
- - Flammable gas
- - Gas
- - H
- - Abundant element whose symbol is "H"
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