Energy content of biofuel

Biofuel is a kind of fuel that comes from plants and other living things. When you use biofuel, it gives you energy to do things like run machines or drive cars. But not all biofuels have the same amount of energy - some have more energy than others.

The amount of energy in biofuel is measured using something called calories. Calories are like little units that measure how much energy something has. So when we say a biofuel has a certain number of calories, we mean it has that much energy.

Different kinds of biofuels have different amounts of calories. For example, one kind of biofuel called ethanol has around 80% as much energy as regular gasoline. That means if you use ethanol instead of gasoline, you might need to use a little more of it to go the same distance. But there are other kinds of biofuels that have even more energy than gasoline!

It's important to know how much energy a biofuel has because it can help us decide which ones to use. If we use a biofuel with more energy, we can go further or do more things before we need to stop and get more fuel. Plus, using biofuels can be better for the environment than using fossil fuels, which can be harmful.