Lily and Mia are best friends. Lily has big brown eyes. Mia has a bright smile. They love to play outside. One day, Lily and Mia see lots of paper on the ground. "Oh no!" says Lily. "What can we do?"
Mia thinks. "We can pick it up!" she says. "Yes, pick it up!" Lily agrees. They start picking up paper. They pick up one, two, three papers. "Look, more paper here!" says Mia. They pick up more paper.
"Look, a bottle!" says Lily. "Let's pick it up too!" says Mia. They pick up bottles. They pick up cans. They pick up lots of things. "Clean, clean, clean!" they sing.
Their teacher, Miss Green, sees them. "Good job, Lily and Mia!" Miss Green says. "You are helping Earth!" Lily and Mia smile. "We help Earth!" they say.
More friends come. Sam and Zoe come. "Can we help too?" they ask. "Yes, help us!" say Lily and Mia. Sam and Zoe pick up paper. They pick up bottles. They pick up cans. "We help Earth too!" they say.
Soon, the playground is clean. "Yay! We did it!" says Lily. "Earth is happy now," says Mia. Miss Green claps her hands. "You are all heroes!" she says. "You help Earth. You help us all."
Lily and Mia feel happy. "We can help again," says Lily. "Yes, help again," says Mia. They smile. They hold hands. They look at the clean playground. They see green grass. They see happy trees. "Thank you, Earth," they say.
From that day, Lily and Mia help Earth every day. They pick up paper. They pick up bottles. They sing, "Help Earth, help Earth!" Their friends help too. Everyone can help. You can help Earth too.