AP Test Strategies and Iron Ore Recycling

The video tutorial guides students through solving a 2016 AP Environmental Science math question. It covers calculations related to rock waste from iron ore conversion, pig iron production from global reserves, and steel production. Additionally, it explains how to calculate coal conservation through steel recycling. The tutorial emphasizes understanding the problem, using proportions, and working with percentages.

What is the first step to take when approaching a complex math problem on the AP test?

• Start solving immediately without reading the prompt.

• Panic and skip the question.

• Take a moment to understand the problem and jot down key numbers.

• Ask a friend for help.

How much waste is produced globally each year when 1.6 billion tonnes of iron ore is converted to pig iron?

• 0.8 billion tonnes

• 2.0 billion tonnes

• 1.2 billion tonnes

• 0.4 billion tonnes

What percentage of iron ore is converted into pig iron?

• 50%

• 100%

• 75%

• 25%

If all global iron ore reserves are used, how many billion tonnes of pig iron can be produced?

• 200 billion tonnes

• 800 billion tonnes

• 600 billion tonnes

• 400 billion tonnes

What is the percentage of iron ore used in steel production?

• 85%

• 90%

• 95%

• 100%

How many billion tonnes of steel can be produced from 800 billion tonnes of iron ore reserves?

• 760 billion tonnes

• 800 billion tonnes

• 600 billion tonnes

• 700 billion tonnes

What should you do if you cannot solve a problem on the AP test?

• Give up and leave it blank.

• Ask the teacher for the answer.

• Skip it and return later.

• Copy from a friend.

How much coal is conserved each year in North America by recycling 80 million tonnes of steel?

• 60 million tonnes

• 80 million tonnes

• 70 million tonnes

• 56 million tonnes

What is the key number needed to calculate coal conservation in steel recycling?

• 1.5

• 0.7

• 1.25

• 2.0

What should you do if you encounter a term you don't know in a math problem?

• Ask someone for the definition.

• Focus on the math and ignore the unfamiliar term.

• Panic and guess the answer.

• Skip the problem entirely.