Earth and the other planets revolve around the Sun and make…

Earth and the other planets revolve around the Sun and make up the solar system. The diagram below represents our solar system. Match the letter of the celestial body (space object) represented to the statement provided. Some letters may be used more than once or not at all.   

Ms. Kornegay measured the mass of a closed beaker containing…

Ms. Kornegay measured the mass of a closed beaker containing several ice cubes.  The mass was 100 g.  An hour later, after the ice cubes had melted, Ms. Kornegay measured the mass of the beaker again.  What was the mass of the beaker of water the second time?