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JB SM & Lab Safety

Scientific Method & Lab Safety

QuestionAnswer
What is a Hypothesis? A Hypothesis is a possible explanation for a set of observation or a possible answer to a scientific question.
What is a Genetic Mutation? It is any change in a cell's DNA.
What is Matter? Anything that has mass and occupies space.
What is an Element? A form of matter that cannot be decomposed into simpler substance by ordinary chemical method.
What is a Trace Element? An Element required in minute qualities by an organism to maintain proper physical functioning.
What is an Atom? Is the fundamental unit of chemical matter.
What is a Nucleus? An Atom's center of mass and center of positive charge.
What is a Proton? Positively charged subatomic particle located in the Nucleus.
What is a Neutron? An uncharged subatomic particle located in the Nucleus.
What is an Electron? A negatively charged subatomic particle located outside the Nucleus.
What is an Isotope? Atoms of the same Element with different numbers of Neutrons in their nuclei.
What is an Ion? A charged species that results from the gain or loss of Electrons from a neutral atom or molecule.
What is a Chemical Bond? An attractive force between two or more atoms or ions that hold them together.
What is a Covalent Bond? A bond whose Electrons are shared between atoms.
What is an Ionic Bond? A Chemical Bond formed by the attraction between positive and negative Ions.
What is a Molecule Formula? An expression indicating the number of each type of atom in one molecule of a substance.
What is a Compound? A substance composed of two or more Elements combined in fixed proportion.
What is a Hydrogen Bond? A weak to moderate attractive force between a Hydrogen atom to Oxygen, Nitrogen, or Fluoride and an Oxygen, Nitrogen, and Fluorine atom to another molecule.
Anything that has mass and occupies space is called what? Matter
A form of matter that cannot be decomposed into simpler substance by ordinary chemical method is called what? An Element
What is an Atom's center of mass and center of positive charge? Nucleus
What is a positively charged subatomic particle located in the Nucleus? A Proton
What is an uncharged subatomic particle located in the Nucleus? Neutron
What is a negatively charged subatomic particle located outside the Nucleus? Electron
Created by: JoelBenitez
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