A wheelbarrow has just one wheel to help carry heavy loads.
You lift the two handles and push it along. The single wheel makes heavy dirt or leaves easy to move.
🚗 Tất cả điều thú vị về Vật có bánh xe →
Thêm điều thú vị về Vật có bánh xe
Wheels roll round and round so things move without dragging.
Skateboards have four little wheels underneath a wooden board.
Roller skates let you glide along on wheels on your feet.
Shopping carts have wheels so they are easy to push around the shop.
People invented the wheel thousands of years ago, long before cars.