Ques: Warmer molecules vibrate faster than cooler ones. Eric decreased the heat of the molecules. They now vibrate faster or slower?
Ans: slower

Ques: Water becomes more dense when it is colder and when it has more salt. If Jim raises the temperature of water in his bathtub, what happens to the density of the water decreases or increases?
Ans: decreases

Ques: Warming up exercises increases the blood flow to the muscles and increases the heart rate. Mel is running down the street for exercise. As Mel's heart rate increases, Mel's blood flow decreases or increases?
Ans: increases

Ques: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes. The population in Milo's city has been increasing recently. What will happen to the city's level of water scarcity decrease or increase?
Ans:
increase