Adjectives are describing words - they tell you more about nouns. 

Nouns are 'naming' words, they are a person, place or thing. 

Adjectives tell you more about the noun. Using adjectives makes your sentences more interesting.

The pretty girls laughed.

In this sentence:
'girls' is the noun (it says who's laughing).
'pretty' is the adjective (it says more about the noun).

Here are some more sentences with nouns and adjectives.
  • The fat captain ate dinner.
  • Sam is blonde and beautiful.
  • Old John and I drove up the big hill.

Remember that adjectives tell you about the noun, they describe the noun. 

Remember that adjectives usually come before the noun. 

You can learn more about adjectives here:

Pick the adjective

Grammar blast