9th Grade Science Finals pt.1
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Wich of the following is NOT one of the main areas of Earth science?
- A- astrology
The Smallest particle of an element that still retains all the elements properties is a(n)?
An atom that loses or gains electrons is called a(n)?
Isotopes of the same element differ in the number of?
The area of Earth science that examines the physical and biological changes that have occurred in earths past is called?
when two or more elements bond together in definite proportions, they form a(n)?
Earths four major spheres are the _____.
hydrosphere,atmosphere,geosphere, and biosphere
Which subatomic particles are most involved in chemical bonding?
In scientific inquiry, when competing hypotheses have been eliminated, a hypothesis may be elevated to the status of a scientific _____.
What type of chemical bond forms between positive and negative ions?
The life-forms of the biosphere are located in the ______.
atmosphere, hydrosphere, and geosphere
Atoms containing the same numbers of protons and different numbers of neutrons are _____.
A scientific hypothesis can become a theory if ______.
the hypothesis is tested extensively and competing hypotheses are eliminated
The mass number of an atom is obtained by totaling the number of ______.
protons and neutrons
The central region of an atom is called the _____.
If the atomic number of an atom is 6 and its mass number is 14, how many neutrons are contained in the nucleus?
What is the study of the atmosphere and the processes that produce weather and climate?
Which of the following statements about the chemical combination of atoms to form compounds is NOT true?
Compounds form when atoms are less stable in a combined form
An atom of the isotope chlorine-39 consist of how many protons, neutrons, and electrons?
17p, 22n, 17e,
Which of earth's spheres includes the oceans, groundwater, lakes, and glaciers?
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