The atmospheric pressure measurements taken at different surface elevations are converted to sea level before they are used to prepare weather maps because the vertical changes in pressure are much larger than the horizontal pressure variations.

True or False

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.