| A | B |
| rock | Hard minerals form pebbles to boulders |
| weathering | The effects of weather on rock |
| Igneous | Rock formed by fire that comes liquefied then hardens |
| pebbles | Small round stones or rock fragments |
| boulders | Large rock fragments |
| sedimentary | Rock formed in liquid and the wearing away of land |
| metamorphic | Rock whose original form is changed |
| solid | a state of matter |