Abundant Elements of Earth Quiz

What is the most abundant element in Earth's Atmosphere?

• Oxygen

• Nitrogen

• Argon

• Oxygen and Nitrogen

Which element is the least abundant in Earth's crust?

• Silicon

• Aluminum

• Calcium

• Oxygen

What is the most abundant element in the human body?

• Oxygen

• Carbon

• Nitrogen

• Calcium

Which element is the most abundant in Earth's oceans?

• Hydrogen

• Water

• Oxygen

• H2O

Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is

• a gas at room temperature.

• made up of two different elements.

• given off by green plants.

• useful to human beings.

Compounds are different than elements because compounds are

• combinations of two or more elements.

• not able to be broken down into parts.

• made from the same type of atoms.

• a pure substance, elements are not.

Is salt (NaCI) a compound or a element

• Compound
• element

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

What does the C represent?

• atomic mass
• atomic number
• element name
• chemical symbol 

Which of the following atomic symbols is written correctly?

• ee
• hE
• C
• CL

Tags

NGSS.MS-PS1-1