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What are the characteristics of these elements
2 electrons in the outer shell highly active very colorful--fire works
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What groups of elements is immediately to the left of the inert gases
Halegens
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What are the characteristics of these elemet
7 electrons in their outer shell highly reactive
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what is matter
made of atoms and molecules
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how many states of matter are there
5
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what are they
solid, gas, liquid, plasma, Bose-Einstein
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What are the characteristics of acids
0-7 on the pH scale sour taste destroy the property of bases
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what are the characteristics of bases
7-14 on the pH scale bitter taste
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define pH scale
measure how acid and basic solution 7 is neutral
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define a chemical reaction
occurs when 2 or more molecules interested and something takes place
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what is a chemical equation
show the product form from chemical reaction from 2 or more reactions and amounts needed to produce the action
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water
is extremely stable
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electron
are massless have no weight
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what kinds of elements are found on the left side of the table
metals
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what kind of elements are on the right side of the table
non metals
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what are elements called are found on the right side of the table
compounds
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are the properties of compounds the same as the properties of the element they contain
NO
-
define a molecule
smallest of a compound and have the property of the compound
-
what does a chemical formula represent
chemical make of substance
-
Na, So
Na sodium, Sulpher, O oxygen
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define a mixture
compose of 2 or more substance to keep their original properties separate by physical means
-
compare and contrast mixtures and compounds
mixture separate by physical means compound separate by chemical means
-
what are the areas in which electrons are found in an atom
orbits
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how are orbits designated
shells K2, L8, M8, N18, O32, P18, Q8
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what group of elements is on the far left of the table
alkali metals
-
characteristics of the elements
highly reactive
-
What are atoms
basic unit of matter having a nuclues surrounded by electrons
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how small are atoms
.000000000045 per inch
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how many different types of atoms have we discovered
90
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name 3 particles found in a atoms
protons, neutrons, eletrons
-
what do we call a substance made from just one type of atom
elements
-
can we change one element into another element
No not by chemical means
-
Can we break an element down into is simplier substance using chemical reaction
NO
-
each element is represented by letters called
symbols
-
what letter represents nitrogen
N
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Gold is represented by what letters
Au
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what do we call the chart in which all of the elements are arranged
periodic table
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In this table what are the similar elements called that are found in vertical columns
families
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what do we call the horizontal rows
periods
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assessment
process of gathering information about student leaning for decision making
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diagnostic
using assessment before teaching students to decide what specific experiences will best encourage student's learning progress
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formative
collecting data on student learning during a lesson
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summative
assessments taht come after instruction
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informal
involves teachers asking students questions, listening to what they say watching what they do in learning performance and examining the products from their performance
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traditional
assessment typically use multiple choice, true-false, short and essay items
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performance
- assessments are typically sent in authentic contexts and often have the look and feel of regular hands-on learning situation.
- data tables, graphs, models, reports, written explanations,science projects, and problem solutions
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evaluation
involves using assessment data in judging student performance and making decisions about learning and instruction
-
What are the science standards
national science education standards and the standards of the various states define goals that should be achieved in science at different grade levels
-
where are students now
a strong knowledge base is important bt emphasis must also be placed on students understanding applying conceptsm and principles, as well as on their being able to use a variety of science processess and investigative procedures
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how are students going to get there
the purpose of classroom assessment is to improve learning and instructions, in light of standards and lesson objectives
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5 main attitudes, values, and habits of mind are especially relevant to successful inquiry in elementary and middle school classrooms
- being curious
- insisting on evidence
- seeking to appy science knowledge
- being willing to critically evaluate ideas
- working cooperatively
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