What are eukaryotes? Cell biology
Eukaryotes (seen through a microscope) are full of chloroplasts When did eukaryotes evolve? Around two billion years ago, when all cells still lived in the ocean, a few of the [...]
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Thermal proteins project: Chewing gum and rubberbands
Oil and water You can easily see for yourself how the amino acids formed into little spheres or bubbles. They were trying to get as far away from the water as [...]
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05, 2017
DNA Project – Science Activities – Biology
Building a model of DNA: a DNA project DNA active learning project To see how DNA unzips and zips up again, get a bunch of kids together, and two pieces [...]
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05, 2017
Leaf project – Chloroplasts and Cell Biology
Fall leaves from a maple tree: their chloroplasts are dying off Why do leaves turn color? You can see that leaves are only green because of the chloroplasts, because in [...]
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05, 2017
Cell Biology Project – Parts of a cell
An onion cell (seen through a microscope) You can see individual cells for yourself if you can get access to a regular light microscope, perhaps at your school, or at [...]
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05, 2017
What is DNA? Genetics and Evolution – Biology
A strand of DNA (seen through an electron microscope) Let's start with RNA If the RNA theory of the origin of life is right, then after a short time, about [...]
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05, 2017
What is cytoplasm? Parts of a cell – Cell Biology
What is cytoplasm? A very simple cell (seen through a microscope) What is cytoplasm? Inside all cells, from the most simple to the most complicated, there is cytoplasm. Cytoplasm is [...]
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05, 2017
What is a chloroplast? Parts of a cell – Biology
Chloroplasts (seen through a microscope) - how did chloroplasts evolve? When did chloroplasts evolve? The first cells that could make sugars out of sunlight and carbon dioxide and water by [...]
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05, 2017
How did the first cells form? Evolution and Biology
A very simple cell (seen through a microscope) like the first cells RNA and lipid membranes Sometime around four billion or 3.5 billion years ago, lipid membranes and RNA or DNA [...]
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05, 2017
What is a sponge? Porifera, Evolution, and Biology
A group of brightly colored sponges in the ocean For almost three billion years, the only living things on earth were one-celled creatures, either prokaryotes or eukaryotes. Even today, the [...]
