An instrument that can detect the presence of an electric charge is a
a. magnet.
b. electroscope.
c. generator.
d. conductor.

Orange juice has a lower or higher viscosity than chocolate syrup

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.

Why, on the molecular level, does changing the amount of baking soda or vinegar affect the amount of carbon dioxide gas produced?