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The Virtual Courseware Project produces interactive, online simulations for the life science laboratory or for earth science field studies.

The activities are designed to enhance an existing curriculum and include online assessments.

There is wide acceptance that inquiry-based curriculum programs have positive effects on cognitive achievement, process skills, and attitudes towards science.

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The simulations are designed to enhance traditional curricula and provide a supplement to experimental laboratory and field work.

activity allows students to simulate laboratory experiments where they breed fruit flies carrying visible mutations and analyze the offspring to determine the laws governing genetic inheritance.

Also, the relatively brief half-life of C remains that the machine used to measure isotopes, a mass spectrometer, cannot reliably detect this amount within its normal background error.

Meteorites Meteorites are pieces of the primordial solar system.

A numerical (or "absolute") age is a specific number of years, like 150 million years ago.

A relative age simply states whether one rock formation is older or younger than another formation.

IX o a principios del X), ha permitido llegar a conclusiones ms seguras sobre la naturaleza del Liber Diurnus, tal y como nos ha the IX, the Claromontanus one around the mid IX Century and the Ambrosianus one at the end of the IX century or around the beginning of the X), allowed us to reach more certain conclusions on the nature of Liber Diurnus, as it was handed down.

Although it was built in the eighteenth century (1774) it has suffered few alterations.

Because of the recycling of crustal rocks by plate tectonics, no direct material from the earliest Earth still exists.

However, geologists are able to analyze meteorites and lunar rocks returned by the Apollo missions.

Alto, USA) in the 1960s and were confirmed with the works of Bert Hellinger, presented by the practitioners of this "global methodological approach" as a "philosopher, theologian and Jungian psychoanalyst, who, during his sixteen year stay in South Africa, in contact with the Zulus, became interested in the way which they "were linked to their ancestors".