Your Guide to Science Fair Topics, Ideas, Experiments, and Winning Displays
Every cell in your body has the same DNA. But the genes on the DNA in every body cell is not active. For example, the DNA in the cells in your toe have the same genes as do the cells in your fingers, eyes, hair, etc… The difference is that the DNA in toe cells, [...]
Batesian mimicry A type of mimicry in which one species evolves to resemble a species that has superior protection against predators. biodiversity Variety among living things. There are three principal types of biodiversity: species diversity, geographic distribution of species populations, and genetic diversity within species populations. biological legacy A living thing, or product of a [...]
Definitions are given in reference to water. Evaporation: The change of liquid water to water vapor at temperatures below the boiling point of water (212o F (100 o C). Evaporation occurs on the surface of water where the molecules of water are linked to each other. The liquid surface water molecules must absorb enough energy [...]
Both animal and plant cells are eukaryotic cells (cells that contain a nucleus). All eukaryotic cells are surrounded by a plasma membrane. This membrane is also called the cell membrane. The plasma membrane is much like a thin plastic sack with tiny hole. This membrane sack contains all the cell parts and fluids. Since there [...]
Thomas Alva Edison (1847-1931), was one of the most prolific American inventors of the 19th century. He was born on February 11, 1847, Milan, Ohio; the seventh and last child of Samuel and Nancy Edison. Edison did not learn to talk until he was almost four years of age. His delay in speaking was not [...]
ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years.
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