(Lesson 10) IELTS Vocabulary (L19,20)

Which of the following best describes "user-friendly"?

• Difficult to operate or understand

• Easy to use or understand by ordinary people

• Complicated and complex

• Designed for expert users only

What does "to monitor" mean in the context of signals?

• To ignore signals completely

• To enhance signals for better clarity

• To listen to or track signals using a receiver for the purpose of checking the quality of transmission

• To create signals from scratch

What is the primary characteristic of "arsenic"?

• A non-toxic element used in food production

• A poisonous chemical element with properties of both metals and nonmetals, used in industry or as a pesticide

• A harmless element used for water purification

• A metal exclusively used in jewelry making

In chemistry, a "catalyst" is defined as:

• A substance that slows down a chemical reaction

• A substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself

• A product of a chemical reaction

• A substance that is permanently changed during a chemical reaction

What is a "compound" in chemistry?

• A mixture of elements that do not chemically combine

• A single element with multiple isotopes

• A substance whose molecules consist of two or more elements held together by a chemical bond

• An element that is chemically inert

What does it mean "to dehydrate" in a chemical context?

• To add water molecules during a chemical reaction

• To lose water molecules during a chemical reaction

• To freeze water molecules

• To create water molecules

Which of the following best explains "preservation"?

• The action of degrading something

• The process of altering something completely

• The action of keeping something the way it is or in good condition

• The action of discarding something

Q1: What is “5 Why” and why it is important?

Q2: What is “Next Time” and why it is crucial?

Q3: What two things should you include in your "Next Time"?