Sedimentary Rocks. The Basics. Sedimentary rocks are classified in three main groups: clastic, chemical, and organic. Each group forms in a very unique way by completely different processes. Read on to discover more about these rocks and how they came to be. Clastic Rocks.
sprig. 1. a small spray of a plant with its leaves, flowers, etc. 2. an ornament having the form of such a spray. 3. a shoot, twig, or small branch. 4. a scion; heir. 5. a youth. 6. a headless brad. 7. to mark or decorate with a design of sprigs.
Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther. Anther: The part of the stamen where pollen is produced. Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed. Stigma: The part of the pistil where pollen germinates.