Chalk Out of Seashells Essay Example

Limitation This study is focused on designing and producing alternative chalks. It also deals with the assessment of its actual advantages as compared to some commercialized one. The qualities and quantities data obtained in the testing of the product against the control were limited to three tests only.

A seashell is the common name for a hard, protective outer layer, a shell, or in some cases a "test", that was created by a sea creature, a marine organism. The shell is part of the body of a marine animal, in most cases the exoskeleton, usually that of an animal without a backbone, an invertebrate. The word seashell is often used to refer only to the shells of marine mollusks, i. e. mollusk shells, but it can also be used to mean the shells of a wide variety of marine animals from different phyla. For helpful introductory articles, see marine invertebrates and marine biology.

Seashells found in beach drift, natural detritus deposited along strandlines on beaches by the waves and the tides. Shells washed up onto a beach empty and clean, the animal having already died, and the soft parts having rotted away or having eaten by either predators or scavengers. Empty seashells found by beachcombers, and collecting these shells is harmless hobby or study. However, the majority of seashells, which offered for sale commercially, have been collected alive (often in bulk) and then killed and cleaned, specifically for the commercial trade.

This type of exploitation can sometimes have a strong negative impact on the distribution of rarer species, and on local ecosystems. Many kinds of sea animals have exoskeletons or shells that may, after death, wash up on the beach. And may be picked up by beachcombers; these include remains from species in other invertebrate phyla, such as the

molted shells or exuviates of crabs and lobsters, the shells of barnacles, horseshoe crab shells, sea urchin and sand dollar tests, brachiopod shells, and the shells of marine annelid worms in the family Serpulidae, which create calcareous tubes.

Summary This research designed by crushing the seashells, which is the main source of the product, and which it can be a useful and eco-friendly product can contribute excellently to our community. In this research, I studied the characteristics of the main source, which is seashell, and I analyzed that it can be a great specimen in my investigatory project. I have done several experiments, which lead into a successful ending in the said project. Conclusion On the experiment conducted to produce a fine product from seashell, I discovered the characteristics of the seashells, which has specific properties and structures.

I discovered that it is on of the stepping-stones of the success of the product in which it is commercially comparable to any commercial products that are the same with this, if there are any, in terms of quality and durability. Recommendation Through decisive, several experiments, this research have conquered an amazing product that has a good quality. I highly recommend using our own original finished product, made from seashells, because aside from its cheapness, it is also easier to produce, eco-friendly, recyclable and has the potential to make our study easier and clearer.