| A | B |
|---|
| alert | someone who is wide awake and quick to notice things |
| analyze | we study it by breaking it into parts |
| biologist | a scientist who studies living things, such as plants or animals and life processes |
| experiment | is a scientific test to find out or prove something |
| laboratory | a place equipped for doing scientific research and experiments |
| methodical | is done in a systematic and orderly way |
| odor | smell |
| particular | someone who is very careful, pays close attention and chooses carefully |
| bacteria | one celled living organisms that are shaped like rods, spirals, or curves |
| mold | a type of fungus that forms a fuzzy coating on the surface of damp or rotten things |
| prefix | placed at the front of a word to change the meaning |
| suffix | placed at the end of a word to change the meaning |
| topic sentence | a sentence that tells what the paragraph is about |
| supporting sentences | sentences that support the topic |
| barter | to exchange or trade goods |
| climate | the type of weather a place has over a long period of time |
| contiguous | next to each other |
| continent | one of the Earth's seven largest land masses |
