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Are there famous mnemonics for science formulas?

From NCERT Asked by Anonymous from Indianapolis, United States 23 Oct 2026, 7:29 PM IST Updated

In one line

Some science formulas have special memory tricks called mnemonics to help you remember them easily.

Mnemonic — Learning technique that helps in remembering
Mnemonic — Learning technique that helps in remembering
A mnemonic is a memory aid, like a rhyme or phrase, to help you remember facts or formulas.
Image: Wikipedia

The rule

A mnemonic is a simple word, phrase, or sentence that helps you remember something hard, like a formula or a list.

Let's understand it simply

Imagine you need to remember the formula for water: H₂O. Sometimes, it is hard to recall which letters and numbers go where. A mnemonic is like a shortcut in your mind. It turns boring facts into fun or silly sentences, so your brain finds it easier to recall. Think of it like a song or rhyme you use to remember your friend's phone number or a cricket score.

How it works

  1. Pick the formula or list you want to remember.
  2. Take the first letter of each part, or use the numbers.
  3. Make a funny or catchy sentence, rhyme, or word with those letters or numbers.
  4. Repeat the mnemonic a few times. Your brain will link it to the formula.
How to create a mnemonic for a formula
  1. Pick the formula you want to remember
  2. Take the first letter or number of each part
  3. Make a funny or catchy sentence with them
  4. Repeat it until you remember the formula

The story behind it

Teachers and students have used mnemonics for hundreds of years. They were first used to remember long poems or lists before books were common. Now, mnemonics are popular in science classes everywhere, because they make learning faster and more fun.

Where you see it in real life

  • Physics: To remember the order of planets — "My Very Educated Mother Just Served Us Noodles" (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune).
  • Chemistry: For the reactivity series — "Please Stop Calling Me A Zebra, I Like Her Call Smart Goat" (Potassium, Sodium, Calcium, Magnesium, Aluminium, Zinc, Iron, Lead, Hydrogen, Copper, Silver, Gold).
  • Biology: For the classification of living things — "King Philip Came Over For Good Soup" (Kingdom, Phylum, Class, Order, Family, Genus, Species).
  • Maths: To remember the order of operations — "BODMAS" (Brackets, Orders, Division, Multiplication, Addition, Subtraction).
  • Chemistry formulas: For water (H₂O), you can say, "2 Hens and 1 Owl make Water" (2 H for hydrogen, 1 O for oxygen).
  • Physics formula: For Ohm’s Law (V = I × R), think "Virat Is Right" (V = I R).

Why it matters

  • Makes remembering long or tricky formulas much easier.
  • Helps you answer quickly in exams without getting confused.
  • Useful in higher classes and competitive exams where you need to recall many facts.
  • Builds confidence, as you can recall information faster than others.

Common mistakes

  • Making a mnemonic that is too complicated — keep it simple and funny.
  • Forgetting what each part of the mnemonic stands for — always check what each word or letter means.
  • Using someone else’s mnemonic that does not make sense to you — make your own if needed.

Remember it

Mnemonics are like mental shortcuts — the sillier or catchier, the better you will remember the formula!

Check yourself

What is a mnemonic?

A memory trick, like a sentence or rhyme, to help remember facts or formulas.

Give a mnemonic for remembering the order of planets.

"My Very Educated Mother Just Served Us Noodles" (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune).

Why do mnemonics help in exams?

They make it easier and faster to recall formulas or lists.

What is a common mistake when using mnemonics?

Making them too complicated or forgetting what each part stands for.

Quick recap

  • Mnemonics are memory tricks for remembering formulas.
  • They turn hard facts into easy sentences or rhymes.
  • You can make your own mnemonic for any formula.
  • They help you recall quickly in exams.
  • Simple and funny mnemonics work best.
Written by the LLOS.ai tutor, checked against NCERT chapters. Asked by Anonymous from Indianapolis, United States on 23 Oct 2026, 7:29 PM IST