Science Digital Project by Tiffany Davis https://padlet.com/114260/nwgwzx5dtky4 Made with the strength to succeed en-us 2016-11-02 21:57:52 UTC 2026-01-09 23:45:46 UTC hello@padlet.com Tiffany Davis 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134945469 Period 7 
November 2]]> 2016-11-02 22:01:01 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134945469 Vocab Section 1  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134947333 Element: a pure substance that cannot be separated into simpler substances by chemical or physical methods 
Pure Substance: A material in which all of the basic particles are identical
Metal: conducts heat and electricity
Nonmetal: An element that conducts heat and electricity poorly
Metalloid: an element that has properties of both metals and nonmetals  ]]> 2016-11-02 22:17:11 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134947333 What Are Elements? 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134951734 -the electric current causes oxygen and hydrogen gases to form
-pure substances that are not elements can be broken down into simpler substances 
-the basic particles of an element are called atoms]]> 2016-11-02 23:00:13 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134951734 How can elements be classified? 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134951866 -elements can be classified two different ways 
-first you can identify its physical properties you can do this by looking at the color, hardness, melting point, density, and texture 
-you can identify and element by an element by its chemical properties, by looking at its reactivity and flammability. ]]> 2016-11-02 23:02:00 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134951866 How Can Elements Be Sorted? 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134952042 n element has three major categories of elements: metals, nonmetals, and metalloids ]]> 2016-11-02 23:04:21 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134952042 Elements  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134952823 -two elements of a particular property are common, but you can use other properties to tell them apart (Physical and Chemical properties)]]> 2016-11-02 23:14:48 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134952823 Vocab Section 2  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134953218 Compound: A compound is a pure substance composed of two or more elements that are chemically combined ]]> 2016-11-02 23:19:23 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134953218 What Are Compounds 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134953340 -during a chemical reaction, new substances are formed because atoms are rearranged. 
in some chemical reactions, two or more elements combine to form a compound
-In other chemical reactions, a compound can be separated into elements or simpler compounds]]> 2016-11-02 23:20:50 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134953340 What Properties Do Compounds Have?  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134953759 -physical properties of compounds include melting point, boiling point,  density, and color -chemical properties can be used to identify compounds
-the properties of a compound differ, not only from those of other compounds, but also from those of its elements. ]]> 2016-11-02 23:24:45 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134953759 How Can I Tell Two Compounds Apart?  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134954227 -every compound has a unique set of properties -the properties are different for different compounds]]> 2016-11-02 23:28:32 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134954227 Do Elements Always Combine in the Same Way to Make Compounds?  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134954532 -carbon monoxide has one carbon atom combined with one oxygen atom
-the properties of a compound depend on which elements combine and how much of each element is in the compound]]> 2016-11-02 23:31:49 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134954532 Can Compounds Be Broken Down?  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134954760 -some compounds can be broken down into their elements by applying heat or using electricity]]> 2016-11-02 23:34:06 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134954760 Vocab Section 3 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134955076 Consentration: the amount of a particular substance in a given quantity of a mixture, solution, or ore. 
Mixture: A combination of two or more substances that are not chemically combined
Solubility: the ability of one substance to dissolve in another at a given temperature and pressure
Solute: in a solution, the substance that dissolves the solute
Solution: a homogeneous mixture throghouut which two or more substances are dispersed
Solvent: in a solution, the substance in which the solute dissolves ]]> 2016-11-02 23:37:56 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134955076 What Are the Properties of Mixtures? 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134955483 -no chemical change happens when a mixture is made
-the components of a mixture are not changed into new chemicals, they can often be separated easily]]> 2016-11-02 23:42:28 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134955483 Do Mixtures Have Fixed Ratios? 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134955666 -compounds are made up of elements that are always present in a fixed ratio.
-a mixture, however, does not have a fixed ratio of components]]> 2016-11-02 23:44:41 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134955666 What Is a Solution? 114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134955796 -a solution is a homogeneous mixture
-the solution appears to be a single substance 
-the process in which particles of substances separate and spread evenly throughout a a mixture is know as dissolving
-water is a very common solvent
-many different substances dissolve in water, it is often called the "universal solvent" 
-the key point in forming a solution is that the particles of the components are evenly spread throughout the solution]]> 2016-11-02 23:46:06 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134955796 How Much Solute Can Be Added to a Solvent?  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/134956176 -as more solute is added to a substance, the concentration of the solution becomes greater -there is a limit to the amount of solute than can be added to a solution
-once it has reached its limit, the solvent will not dissolve the solute]]> 2016-11-02 23:50:48 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/134956176 Section 1 Picture  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/135487431 Periodic Table of Elements ]]> 2016-11-04 18:51:09 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/135487431 Section 1 Picture  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/135487702 Metals, Nonmetals, and Metalloids ]]> 2016-11-04 18:51:59 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/135487702 Section 2 Picture  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/135488161 Compounds]]> 2016-11-04 18:53:42 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/135488161 Section 2 Picture  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/135488435 Compounds ]]> 2016-11-04 18:54:38 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/135488435 Section 3 Picture  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/135489034 Mixtures ]]> 2016-11-04 18:56:46 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/135489034 Section 3 Picture  114260 https://padlet.com/114260/nwgwzx5dtky4/wish/135489468 Solute, Solution, and Solvent ]]> 2016-11-04 18:58:29 UTC https://padlet.com/114260/nwgwzx5dtky4/wish/135489468