surface
puncture
mixture
minutes
contain
backpack
echolocation
adventure
The outside part or uppermost layer of something.
A period of time equal to sixty seconds or a sixtieth of an hour.
An unusual and exciting or daring experience.
A small hole in a tire resulting in a loss of pressure.
A substance made by mixing other substances together.
A biological sonar used by animals like bats and dolphins to navigate and hunt by emitting sounds and listening to the echoes.
To have or hold within.
A bag with shoulder straps that allow it to be carried on one's back.
sculpture
polite
decided
lecture
course
moisture
pasture
The art of making two- or three-dimensional representative or abstract forms, especially by carving stone or wood or by casting metal or plaster.
Having or showing behavior that is respectful and considerate of other people.
The route or direction followed by a ship, aircraft, road, or river.
An educational talk to an audience, especially one of students in a university or college.
Land covered with grass and other low plants suitable for grazing animals, especially cattle or sheep.
Water or other liquid diffused in a small quantity as vapor, within a solid, or condensed on a surface.
Having made a firm decision and being unlikely to change it.