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Can you pick the word for 'hydrogen' in the following languages?
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Can you pick which of these chemical compounds contain hydrogen atoms, and leave the ones that don't?
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Can you click the element groups of the periodic table?
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Can you fill out the crossword with the answers, which can only be made from the letters H-Y-D-R-O-G-E-N?
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Can you identify the information about the element hydrogen?
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Can you name the three naturally occurring isotopes of the element hydrogen?
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Find hydrogen powered cars in the picture below.
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Can you name any element (apart from Hydrogen) that... ?
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Can you name the elements that physically border Hydrogen in the Periodic Table?
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Can you correctly choose the facts about hydrogen? (Please read the game note)
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Can you pick the words that Start and End with H from their definitions?
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Can you name the HCHS Hydrogen Spectral Lines?
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Can you match the definitions to the words that can be made using the letters from 'Hydrogen'?
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Can you name whether hydrogen applies to the clue or not?
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Can you name these 20 facts about hydrogen?
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Can you name the hydrogen spectral lines?
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Can you name the Hydrogen airships that where involved in a non-war realted accident?
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Can you find the answers to the questions about Hydrogen?
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Can you name the Find Six Hydrogen Spectral Series Names?
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Can you name the conditions of the Standard Hydrogen Electrode