Simplify the following text for a Grade 5 native English-speaking person.
Original: Walters attached the balloons to his lawn chair , filled them with helium , put on a parachute , and strapped himself into the chair in the backyard of a home at 1633 W. 7th St. in San Pedro He took his pellet gun , a CB radio , sandwiches , cold beer , and a camera .
Simplified: He put on a parachute and used belts to hold himself in the chair . He took his pellet gun , a CB radio , sandwiches , cold beer , and a camera .