| A | B |
|---|
| project | work or activity that needs to be finished in a certain time |
| recycle | to reuse items that are thrown away |
| drip | to flow downward in small drops |
| carton | a box made of cardboard or heavy paper |
| complicated | something that is difficult to understand |
| pollution | damage caused to water or air by harmful substances |
| rubbish | garbage or other worthless material that is not needed |
| hardly | almost not at all |
| shade | slight darkness caused by an object blocking the sunlight |
| global | relating to the whole world |
| tiptoe | to walk quietly on your toes with the heel of your foot lifted off the ground |
| save | to keep something from being injured or destroyed |
| perfume | a liquid that smells good and is often put on the skin |
| collect | to get things from different places |
| batty | silly or slightly crazy |
| head | to go in a certain direction |
| throw | to send something through the air |
| quit | to stop doing something |
| compost | old plant material that is added to soil |
| trudge | to walk slowly with a lot of effort |
| ruin | to spoil or destroy something |
| fossil | a bone that has been preserved in rock for a long time |
| clue | something that helps solve a problem or mystery |
| remains | pieces of something left behind while the rest has been destroyed |
| prove | to show that something is true |
| evidence | something that gives a reason for believing that something is true |
| skeleton | the set of bones in a body |
| uncover | to find something in the ground by removing dirt from the top of it |
| bury | to put something into a hole in the ground and cover it |
| fierce | violent and frightening |
| location | a place or position |
| dig | to make a hole in the ground |
| plow | a large farming tool that digs into soil |
| discovery | finding information, a place or an object for the first time |
| unusual | not ordinary |
| jaws | the bony part around the mouth |
| crush | to press something so hard that it is broken |
| paleontologist | a person who studies fossils |
| locate | finding the exact position of something |
| quicksand | deep wet sand that sucks in everyone trying to walk across it |
