Choose the statement that correctly describes the diagram. a. side b has a higher concentration of particles than side a. b. there are two types of particles with varying amounts. c. side a has a higher concentration of particles than side b. d. side a and side b have equal numbers of particles. mark for review (will be highlighted on the review page)

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

What state of matter is ice a. liquid b. element c. solid d. gas

The arrangement of particles is most ordered in a sample of