Nitrogen is a chemical element represented by the symbol . In its normal state, it is a gas that has: No color (you can’t see it). No smell (you can’t sniff it). No taste (you can’t taste it).
Have you ever wondered why bags of chips are so puffy? They are filled with nitrogen gas to keep the chips crunchy and fresh for a long time. Cool Facts about Liquid Nitrogen
It creates a thick white fog when it touches the air, which is why it's often used for "mad scientist" experiments or special effects in movies.
Plants need nitrogen from the soil to grow big and strong. That’s why many farmers use nitrogen fertilizers.