Elements and Compounds Quiz

Ethan, Liam, and Aria are on a science adventure! They come across four mysterious substances. Can you help them figure out which one is a compound?

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During a science quiz, Sophia asks Scarlett and William: "Which element does the chemical symbol 'Na' stand for on the periodic table?" Can you help them out?

• Nitrogen

• Sodium

• Neon

• Nickel

Jackson and Sophia are in science class, and their teacher asks: Which of the following best describes a molecule?

• A single atom of an element

• Two or more atoms chemically bonded together

• A mixture of different elements

• A symbol on the periodic table

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• 6

• 12

• 18

• 24

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Benjamin and Arjun are having a science debate! Benjamin says elements and compounds are different because of their chemical symbols and formulas. Can you help them settle the debate by choosing the correct comparison?

• Elements have one type of atom and a single symbol; compounds have two or more types of atoms and a formula.

• Elements have two or more types of atoms and a formula; compounds have one type of atom and a single symbol.

• Both elements and compounds have only one type of atom.

• Compounds are found on the periodic table, elements are not.

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• Sodium and chlorine; 1 atom of each

• Sodium and carbon; 1 atom of each

• Nitrogen and chlorine; 1 atom of each

• Sodium and chlorine; 2 atoms of each

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Liam, Grace, and Charlotte are sorting through different substances in their science class. Which of the following is an example of an element that they might find?

• 2

• 3

• 4

• 5

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• It contains only one type of atom.

• It contains two different types of atoms, carbon and oxygen, chemically bonded together.

• It is found on the periodic table as a single symbol.

• It is a mixture, not a pure substance.

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• 3

• 4

• 12

• 6

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