Science+Vocabulary+1

= Science Vocabulary=

This is a list of the terms that you will learn during the 3rd quarter. Write down the definition that we are using for these terms. Write commenes if you wish. You may change something already done if you consider that is incorrect. You also may add examples.

This is a chance to get extra points for your grade.

 * 1) === Matter: Matter is everything that is made of substances. Matter is anything that has mass and volume, the substance or substances of which any physical object consists or is composed.  ===
 * 2) === Mass: A measure of how much matter an object is made of. ===
 * 3) === Particle: A very small piece of matter, such as an atom, molecule or ion. One of the extremely small constituents of matter, such as an atom.  ===
 * 4) === Atom: is the smallest particle (after subatomic particles) of matter or the smallest particle of an element that has the same properties of that element.  ===
 * 5) === Molecule: when atoms combine together. A group of atoms held together consisting of one or more like atoms of an element and two or more different atoms in a compound.  ===
 * 6) === Weight: The force of gravity of an object. Measured in Newtons. Downword pull of an object due to gravity.  ===
 * 7) === Volume: An amount of three - dimensional space, often used to decribe the space that an object takes up, the capacity of such a region or of a specified container, expressed in cubic units.  ===
 * 8) === Compound: **chemical compound** is a chemical substance consisting of two or more different chemical elements. ===
 * 9) === Element: A substance that cannot be broken down into another substance by ordinary chemicalchanges. ===
 * 10) === Density: The density of a material is defined as its mass per unit volume.  ===
 * 11) === Energy: energy is a scalar physical quantity that describes the amount of work that can be performed by a force, an attribute of objects and systems that is subject to a conservation law . ===
 * 12) === Force: A push or a pull ;something that changes the motion of an object  ===
 * 13) === Gas: Matter with no definite volume and no definite shape.The molecules in a gas are very far apart and the amount of space between them can change easely  ===
 * 14) === Gravity: Gravitation is a natural phenomenon by which objects with mass attract one another  ===
 * 15) === Heat: The flow of energy from an object at a higher temperature to an object at a lower temperature.  ===
 * 16) === Liquid: matter that has a define volume but does not have a define shape.The molecules in a liquid are close together but not bound to one another.  ===
 * 17) === Mixture: a portion of matter consisting of two or more components in varying proportions that retain their own properties  ===
 * 18) === Solid: State of matter, something rigid, that has a fixed shape and definite volume.  ===
 * 19) === States of matter: The different forms in which matter can exist. The three states of matter are solid, liquid and gas. ===
 * 20) === Substance: Matter of a particular type. Elements, compounds, and mixtures are all substances. ===

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