| A | B |
| attention | you watch, listen, or think carefully |
| communicate | to share ideas by talking writing or using your body |
| complex | describes somthing that is hard to understand or do |
| cooperate | to work together to reach the same goal |
| current | air or water that moves in one direction |
| detect | discover something that is hidden |
| echo | a sound that is repeated because it bounces off of something |
| journey | travel from one place to another |
| merge | come together to become one thing |
| migrate | move from one place to another |
| pattern | repeating set of colors, shapes, objects, or actions |
| route | a way to get from one place to another |
| scout | a person or animal sent out to find or bring back information |
| sonar | use of sound waves to locate things |
| trace | follow a trail or study something |