Meaning: "mechanism" means a method or process that makes something happen.

Wrong options:

• mechanisim: It adds an extra "i". The right spelling is "mechanism". Every letter must be correct to get the mark.
• mechanisms: "mechanisms" has an extra "s" at the end. The speaker says "mechanism", with no "s".

Correct answer: transfers

Explanation: You hear "it transfers heat". You need an action word that ends in s.

Meaning: "transfers" means moves something from one place to another.

Wrong options:

• tranfers: It leaves out the "s". Check the letters: "transfers". A small spelling mistake loses the mark.
• transfer: "transfer" has no "s" at the end. The speaker says "transfers", so write the "s".

Correct answer: condenses

Explanation: Listen for "it condenses into a cloud". You need an action word that ends in s.

Meaning: "condenses" means changes from gas into tiny liquid drops.

Wrong options:

• condences: It has "c" where the word has "s". The right spelling is "condenses". Every letter must be correct to get the mark.
• condensed: "condensed" is a close word, but it ends in "d". The speaker says "condenses", which ends in "s".

Correct answer: positive

Explanation: On the recording you hear "have positive charges". It comes before "charges", so you need a describing word.

Meaning: "positive" means having a plus electrical charge.

Wrong options:

• postive: It leaves out the "i". The right spelling is "positive". Every letter must be correct to get the mark.