A teacher opens a can of food in the front of a classroom. Soon, all of the students in the classroom can smell the food. Which statement identifies a property of a gas that allows all of the students to smell the food?
A: A gas takes the shape of its container.

Students make weather observations outside the school building, and then they record their observations. Which observation should be recorded as a fact?
A: The wind is blowing at 5 m/s.

Which term is used to describe a physical property of a mineral?
A: solid

Tobias rode his bike on a road for a 2 hr period. On average, he passed a 1 km marker every 3 min during this period. Which of the following was his average speed for this 2 hr period?
A:
20 km/hr