Simplify the following text for a Grade 8 native English-speaking person.
Original: The 1970 Atlantic hurricane season officially began on June 1 , 1970 , and lasted until November 30 , 1970 .
Simplified: The 1970 Atlantic hurricane season was the period of time in 1970 that tropical cyclones formed in Atlantic Ocean . It officially began on June 1 , 1970 , and it ended on November 30 , 1970 .