Science I
Project 1) Draw and explain the structure of modern periodic table and find out the application of all the inert gases
Project 2) explain Kepler's law and relate with Newton's law of gravity
Science II
Project 1) mechanism of hereditary changes
Project 2) different stages of mitosis and meiosis
Answers
Answer:
project 1)
In the modern periodic table, the elements are arranged in the order of their inreasing atomic number. In the modern periodic table there are seven horizontal rows called periods and eighteen vertical columns (1 to 18) called groups. The arrangement of the periods and groups results into formation of boxes.
Inert gases are used generally to avoid unwanted chemical reactions degrading a sample. These undesirable chemical reactions are often oxidation and hydrolysis reactions with the oxygen and moisture in air.
project 2) The Law of Orbits: All planets move in elliptical orbits, with the sun at one focus. ... The Law of Areas: A line that connects a planet to the sun sweeps out equal areas in equal times. 3. The Law of Periods: The square of the period of any planet is proportional to the cube of the semimajor axis of its orbit.
a)Newton's law of universal gravitation is objects attract other objects with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between them and it relates to Kepler's laws by Newton stated the law of universal gravitation in terms that applied to the ...
project 1) Heredity can be defined as the process of transmission of the characters from the parents to the offspring through the mode of reproduction. Hereditary changes can occur due to the following changes: Natural Selection- One allele is fixed for the population as it provides a survival advantage.
project 2) In meiosis, prophase, metaphase, anaphase and telophase occur twice. The first round of division is special, but the second round is more like mitosis. In mitosis, prophase, metaphase, anaphase and telophase occur once.
