What is meant by the statement, "a thermometer measures its own temperature"?

What produces a record of seismic waves? richter scale seismogram barometer seismograph

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?