Here are 10 short rephrasings suitable for a 7-year-old:
- The bulldozer has a big blade and tracks to push rocks and dirt.
- A huge blade and tracks let the bulldozer shove rocks and dirt away.
- The bulldozer uses its big blade and tracks to move rocks and dirt.
- With a big blade and tracks, the bulldozer clears rocks and dirt.
- The bulldozer's blade and tracks push aside rocks and dirt.
- Big blade and tracks help the bulldozer dig through rocks and dirt.
- The bulldozer pushes rocks and dirt with its wide blade and tracks.
- Tracks and a large blade let the bulldozer clear dirt and rocks.
- The bulldozer can shove dirt and rocks using its blade and tracks.
- Its huge blade and strong tracks move rocks and dirt out of the way.