Circle the letter of each sentence that is a scientific question a. At what temperature does water boil?
b. When does the sun rise on April 3?
c. How can my team work better together?
d. Why does she like science more than he does?

Why is there friction between objects

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?