Here is a list of all of the skills that cover word problems! The skills are organized by grade, and you can move your mouse over any skill name to see a sample question. To start practicing, just click on any link. IXL will track your score, and the questions will even increase in difficulty as you improve!
The universe is mostly empty space. Even in a "crowded" region like our solar system, the distances between planets are so vast that they are difficult to imagine. This animation simulates a voyage from the sun past all nine planets. For convenience, the planets are lined up in the same direction.