earth day weekend, and the kids determined to inspire change. reporter: on this earth day weekend, kids across this country answering the call. i just love nature. i just want to save mother earth in whatever way i can. i just thought batteries, you know? reporter: 9-year-old rayansh boddu from edison, new jersey, on a mission to stop used batteries from harming the environment. the batteries can be used to make golf bats, copper, other batteries and many more items. reporter: joining a recycle my battery program, he helps provide bins for people where they can toss out their old batteries. we have nine volts, more than nine volts, less than nine volts, all kinds. reporter: so far he s recycled some 20,000 batteries, but his goal, much bigger. the whole recycle my batteries team is aiming to recycle 500 billion batteries. reporter: in fort wayne, indiana, 13-year-old sammie vance has been collecting plastic bottle caps since she was 8. you can collect so many di