Francis is learning about dissolving at school. She reads descriptions about the rate of dissolving from four of her friends. George: The rate of dissolving can be fast or slow. The only thing you can do to speed up the rate of dissolving is to make the temperature hotter.
Manuel: The rate of dissolving can change. The rate of dissolving gets faster when the particles are smaller, the temperature is hotter, or the mixture is stirred.
Kim: The rate of dissolving speeds up when the particles are larger and the temperature is hotter. Stirring the mixture also helps increase the rate of dissolving.
Chris: The rate of dissolving can speed up or slow down. Heating a mixture, stirring a mixture, or using smaller particles will slow down the rate of dissolving.

Which of her friends has the best description about the rate of dissolving?

A George
B Manuel
C Kim
D Chris

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Juju.01) 5 geologic events a group of students designed an experiment in an ice rink to represent the solar system. the steps of the experiment are listed below. 5: geologic events 1. choose a student to represent the sun. the planets are represented by two tennis balls. 2. ask the student to hold the tennis balls in each palm and spin on the ice with arms stretched out. 3. ask the student to draw in the arms after about 10 spins. 4. observe the student's arms rotate faster when they are closer to the body. 05 geologic events enors) the experiment most likely demonstrates that (2 points) 07 discussion-based sessment/module planets exert gravitational force on the sun the sun exerts gravitational force on the planets 3.07 discussion-based ssessment speed of a planet depends on its distance from the sun new version available! (3.0.119) get it now submit 18.07: module exam description