| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| bicycle |
a light vehicle with two wheels, one behind the other. You make the wheels turn by pushing on pedals. |
| chemical |
a substance used in or made by a chemical process. |
| fail |
to not succeed in trying to do something. |
| fetch |
to go somewhere, pick up something, and bring it back. |
| lady |
a polite word for woman or girl. |
| metal |
a kind of chemical element, such as copper, iron, or silver, that can move heat or electricity through itself. |
| middle |
halfway between two things, places, or points. |
| mouth |
the part of the body through which an animal eats, breathes, and makes sounds. The mouth is on the face below the nose. |
| neat |
clean and in proper order, or liking to keep things that way. |
| radio |
a piece of equipment that receives signals that travel through the air and changes them into sound. |
| reflection |
heat, light, or an image that bounces off an object or surface. |
| season |
one of the four parts of the year, the seasons are spring, summer, fall (autumn), and winter. |
| sofa |
a comfortable seat with a back and arms made for two or more people; couch. |
| sour |
having a sharp taste caused by acid. Lemons, vinegar, and yogurt are some things that are sour. |