| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| carpenter |
a person who builds or repairs houses and other things made of wood. |
| crawl |
to move along the ground on the hands and knees. |
| fin |
a thin, flat body part of a fish and certain other water animals which is used for swimming or balance. |
| flow |
to move in a smooth, steady stream. |
| grease |
a thick, oily material used on a machine to allow the parts to rub together smoothly while the machine is working. |
| harbor |
a safe area of water where people can leave their boats. |
| imagination |
the power of the mind to make a thought or picture of something that is not real. |
| insect |
a small animal whose body is divided into three parts. Insects also have three pairs of legs and usually one or two pairs of wings. Bees, ants, butterflies, beetles, and flies are some kinds of insects. |
| know |
to have information in your mind that comes from what you have learned or can see. |
| really |
in fact; actually. |
| return |
to go back or come back. |
| skate |
to move over ice or another hard surface using shoes that have a blade or wheels attached to the bottom. |
| snug |
small and comfortable; cozy. |
| wilderness |
a region in its natural state where there are things like trees and wild animals, but no people living there. |