Oil – American science
A homemade oil lamp Oil is a kind of liquid made out of hydrocarbon molecules. It is mostly fat. Lots of plants and animals make oil. In North America, people got most of their oil from salmon, bison, and sunflowers. [...]
A homemade oil lamp Oil is a kind of liquid made out of hydrocarbon molecules. It is mostly fat. Lots of plants and animals make oil. In North America, people got most of their oil from salmon, bison, and sunflowers. [...]
Native American food: Inuit carving of a sea lion Hunting and gathering wild food Early on, until about 2000 BC, people in North America ate only wild foods that they could hunt or gather. More about [...]
Olive trees (on the Mount of Olives, Jerusalem) Olive trees grew around the Mediterranean Sea, and early Stone Age people used the oil from wild trees, which burns well without [...]
Wild sunflowers or Black-Eyed Susan flowers Where do sunflowers grow wild? Sunflowers grew wild all over North America. From the Paleo-Indian time on, many different groups of people picked sunflowers and [...]
Palm trees Palm trees first began to grow in
Fatty food: There are lots of different kinds of cheese. Why do we need to eat fat? Fats are foods which store energy in case you need it later. Everybody [...]
Avocado history: this is a modern avocado. Where do avocados grow? Mexico. Where do avocados come from? Avocados first evolved about 350 million years ago. That was in the Cretaceous [...]
History of almonds: Almonds drying after harvest (Southern Spain) Where do almonds come from? Wild almonds are related to peaches and apples. Almonds probably evolved about the same time, around five [...]
History of cheese: There are lots of different kinds of cheese. How to preserve milk? If you don't have a refrigerator, there's no way to keep milk from going bad [...]
A Native woman making pemmican Our word "pemmican" comes from the Cree word "pimikan". Pemmican was a sort of energy bar: not great food, but a lot of fat and sugar [...]