An excavator is a big machine that helps people dig into the ground. Imagine you have a giant shovel! The excavator uses its long arm to move dirt and rocks. Here’s how it works:
- The Arm: The excavator has a long arm, like an elephant's trunk, that can reach far and lift heavy things.
- The Bucket: At the end of the arm, there's a big bucket. This bucket scoops up dirt and rocks, just like using a shovel to dig in the sand.
- Driving: The excavator can move around on its tracks or wheels. It can go forward and backward, just like when you walk!
- Helping Us: Excavators are really helpful for building things like houses, roads, and parks. They dig deep holes to make sure everything is strong and safe.
So, an excavator is like a super strong robot that helps us dig and lift heavy stuff to make our world better!