Hybrid electric vehicles are cars (or trucks) that can run on both electricity and gas. Just like how you need food to give you energy to play, cars need fuel to move. But with hybrid electric vehicles, they use a special battery to store electricity that you can charge up, and when the battery gets low, the car can switch to using gas like a normal car.
The battery in a hybrid car works kind of like your bicycle's pedals. When you pedal your bike, you're making electricity that helps move it forward. When a hybrid car brakes or slows down, it makes electricity too, which is stored in the battery to use later on. This is called regenerative braking.
Driving a hybrid car can be really fun because you can switch between electric and gas mode. When you're driving around town or in a parking lot, you can silently run on electricity, which is good for the environment because it doesn't make any pollution. But when you're driving on the highway, you might want more power to go faster, so the car can switch to using gas to give you that extra power.
Overall, hybrid electric vehicles are a great way to save money on gas and also help protect the planet by producing less pollution.