Basic Details
Word: Chemical
Part of Speech: Adjective & Noun
Meaning: Relating to substances used in science or a substance made of pure matter.
Synonyms: Substance, compound
Antonyms: Natural, organic
Idioms and Phrases
- To bottle it up chemically: To keep one's feelings or emotions inside, not expressing them to others. Example: "He tends to bottle it up chemically instead of sharing his thoughts with his friends."
- Chemical reaction: An action involving a change or interaction between substances. Example: "When you mix baking soda and vinegar, it creates a chemical reaction that produces bubbles."
Usage Examples
Example 1: Water is a simple chemical made of two hydrogen atoms and one oxygen atom.
Example 2: Scientists are studying the chemical properties of different materials to create better batteries.
Example 3: We learned about the chemical elements on the periodic table in science class.
Fun Fact
The word "chemical" comes from the Greek word "khemeia," which refers to the art of transmuting metals. This historical connection shows how chemistry has evolved from ancient practices into the modern science we know today.
Famous Quote
"Chemistry is the father of science and the mother of all inventions." - Jean-Baptiste Dumas
Multiple Choice Questions (MCQs)
1. What does "chemical" mean?
a) Unrelated to substances
b) A substance used in science
c) A type of animal
d) A story
Answer: b) A substance used in science
2. Which of these is a synonym of "chemical"?
a) Density
b) Compound
c) Geography
d) Mathematics
Answer: b) Compound
3. Which sentence uses "chemical" correctly?
a) The chemical sung a song to the children.
b) Mixing these two liquids causes a chemical reaction.
c) My favourite chemical is blue.
d) Chemical are often seen in nature as animals.
Answer: b) Mixing these two liquids causes a chemical reaction.
4. Which idiom means an interaction involving substances?
a) To bottle it up chemically
b) Chemical reaction
c) A chemical bond
d) A horse of a different colour
Answer: b) Chemical reaction
5. What is the opposite of "chemical"?
a) Synthetic
b) Organic
c) Manmade
d) Processed
Answer: b) Organic
