The scientific name for protist is protista. Protists are organisms with a nucleus that don't fit into other kingdoms. Protists get food in different ways. Algae, protists that use sunlight for energy, have chlorophyll in their cells, so they can make food from the sun. Plankton, protists that float in water, get food by eating other plankton or through photosynthesis. Fungus like protists get their food by sucking nutrients out of dead plants or animals. Protozoa, animal-like protists, get their food by eating other organisms. Protists are both unicellular and multicellular, and both eukaryotic and prokaryotic.
Protist Organisms
An example of a protist is seaweed. It's scientific name is Eucheuma Cottoni. Seaweed is green leafy floating organism. It's a protist because it doesn't fit anywhere else. Some interesting facts are:
1. Even though people think of seaweed as edible, some species are very poisonous.
2. Some weird species of seaweed are "dead man's fingers" and "cactus weed".
Another example of a protist is an amoeba. It's scientific name is Pelomyxa palustris. Amoebas are microscopic unicellular organisms. They can take whatever shape they want. Some interesting facts are: 
1. Amoebas can have hundreds of nuclei!
2. Amoebas eat by surrounding their prey and absorbing it.
Bibliography:
Protist info: The Diversity of Living Things
Amoeba info: http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artsep01/amoeba.html
Seaweed info: http://www.marineparks.wa.gov.au/fun-facts/seaweeds.html
Amoeba picture:http://web.ukonline.co.uk/m.hoult/fw/images/amoeba.jpg
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