Elements and Compounds for 6th Grade Science

What are atoms described as in the video?

• The smallest unit of a compound

• The building blocks of everything

• A type of molecule

• A type of element

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What is an element in its purest form?

• A pure substance that cannot be broken down further

• A compound

• A combination of atoms

• A mixture of substances

Which of the following is NOT a category of elements?

• Non-metals

• Metals

• Compounds

• Metalloids

How are elements represented on the periodic table?

• By their color

• By their full name

• By a chemical symbol with one or two letters

• By their atomic number

What is the chemical symbol for aluminum?

• Al

• Au

• Ag

• Fe

Which element is represented by the chemical symbol 'Fe'?

• Nickel

• Copper

• Iron

• Aluminum

What is a characteristic of non-metals?

• They are always solid

• They are very brittle or gases

• They are always metals

• They are always liquids

What does 'pure' mean in the context of elements?

• One of a kind and stands alone

• A combination of different elements

• Mixed with other substances

• A type of compound

What happens when two different elements are chemically combined?

• They form a new element

• They remain separate

• They form a new compound

• They form a mixture

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What is the result of combining hydrogen and oxygen?

• Water (H2O)

• Methane

• Carbon dioxide

• Ammonia

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