ECOSYSTEMECOLOGICAL NICHEHARSH HABITATFOOD CHAINFIND OUT MOREEcology examines the relationship between living things and their environment. Animals adapt to the particular conditions of an…
TYPES OF FOSSILBIOGRAPHY: WILLIAM SMITH British, 1769-1839FOSSILIZATIONFIND OUT MOREFossils are the remains or traces of an animal or plant that are preserved in rock. They come in many forms,…
AIR POLLUTIONGREENHOUSE EFFECTACID RAINACCIDENTAL POLLUTIONFIND OUT MOREPollution is waste that we put into the environment. It can harm plants and animals, including humans. Pollution comes…
UPWARD-FLOWING WATERSTANDING FIRMSTOMATAFIND OUT MOREIn this process, water evaporates from the surface of a leaf through microscopic pores known as STOMATA. The loss of water creates a…
RELEASING NITRATESBIOGRAPHY: LOUIS PASTEUR French, 1822-1895FIND OUT MOREBacteria are monerans, the simplest single-celled organisms. They are the smallest of all cells, visible only through…
CLOUDS AMONG THE STARSLIFE CYCLE OF STARSFIND OUT MOREThe spaces between the stars are not completely empty, but are filled with clouds of gas and dust called nebulas. We can see nebulas when…
EQUATORIAL FORESTCLIMATE ZONESHEAT FROM THE SUNMOUNTAIN CLIMATESCOASTAL CLIMATESSEASONSFIND OUT MOREEvery part of Earth has its own climate – the typical pattern of weather over a long period…
RUNNING GAZELLEGLIDERJET PROPULSIONFLYINGMUSCLESSKELETONFIND OUT MOREAll animals are mobile for at least some part of their lives because they need to find food. Most movement is controlled by…
ON THE ALERTTOUCH-SENSITIVE FEELERSVISIONHEARINGSMELLFIND OUT MORETo find food, mate, avoid danger, and communicate, animals rely on information gathered by their senses. Information is…
WOODY TISSUEFORESTSEVERGREEN TREESDECIDUOUS TREESFIND OUT MOREThese tall, seed-producing plants live for many years and do not die in winter. Trees have a single woody stem, called a trunk,…
