Science and Elements Quiz

What are elements?

• Only liquids and gases

• None of the above

• Types of chemicals only found in labs

• Building blocks of everything

What is a compound?

• A pure metal

• A type of element found in nature

• A chemical combination of elements that is hard to separate

• A mixture of elements that can be easily separated

Which of these is a pure element found naturally on Earth?

• Bronze

• Brass

• Gold

• Iron oxide

What is brass made of?

• Copper and tin

• Copper and zinc

• Iron and carbon

• Zinc and silver

What does 'pure' mean in scientific terms?

• Natural and clean

• Contains only one type of molecule

• Mixed with minerals

• All of the above

What is the compound formed by iron combining with oxygen?

• Iron nitrate

• Iron chloride

• Iron oxide

• Iron sulfide

What is the process called when water is heated to remove minerals?

• Distillation

• Condensation

• Filtration

• Evaporation

What is the main component of brass?

• Aluminum

• Iron

• Copper

• Gold

What is the ratio of hydrogen to oxygen in water molecules?

• 2:2

• 1:1

• 2:1

• 1:2

What can be said about meteorites in terms of their composition?

• They are made of unknown elements not found on Earth

• They are softer than Earth rocks

• They are purely made of iron

• They contain the same elements as Earth but in different forms