Junk food is considered a private good (exclusive and rival) because there is a cost to the consumer and a limited supply (the grocery store could run out).
Energy is considered a club good (exclusive and non-rival) because there is a cost to the consumer, but consumption by one consumer doesn't affect the quality of another's consumption of said product.
Fishing is considered a common resource (non-exclusive and rival) because anyone can go fishing, but there is a limited supply of fish in the ocean.
Education is considered a public good (non-exclusive and non-rival) because education is free for the consumer and there is no rivalry (theoretically) for a seat at a public school.