

Sara and Ben were twins who liked to play together. One day, they found a big bottle of milk in the fridge. They wanted to drink some, but they did not know how old it was.
"Let's try it," Ben said. He opened the bottle and smelled it. He made a face. "It smells funny."
"Maybe it's good," Sara said. She wanted to encourage Ben. "Maybe it's a new kind of milk. Maybe it's sweet and yummy."
Ben was not sure, but he liked to try new things. He poured some milk into a cup and took a sip. He spat it out right away. "Blech! It's sour! It's bad! It hurts my mouth!"
Sara saw Ben's reaction and felt sorry for him. She did not want to drink the milk anymore. She gave him a hug and said, "I'm sorry, Ben. I was wrong. It's not a new kind of milk. It's old milk. It's spoiled. We should throw it away."
They ran to the sink and poured the milk down the drain. They rinsed their cups and mouths with water. They decided to have some juice instead. They learned to check the date on the bottle before they drink milk. They also learned to trust their noses more than their ears.
