Drag the temperature slider upward

As temperature rises, products separate from the tower

Read each product's boiling range and real-world uses

Click a tower layer on the fractionating column

Then click the matching product card

Correct = +10 pts + streak bonus

Read the question and pick the correct answer from 4 options

Correct = +15 pts + streak bonus

A petroleum product is shown with its description

Choose its correct boiling temperature range

Correct = +20 pts + streak bonus