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Up and ATOM
Caught in the WEB
Luck of the Draw
Lay it on the TABLE
Why does this MATTER!?
100
the central core of an atom containing protons and neutrons
What is Nucleus?
100
animals that eat only plants
What is Herbivore?
100
decimal number found beneath the symbol in the element square on the periodic table; usually rounded off to find the number of neutrons
What is the Mass Number?
100
elements found on the left and center of the periodic table; usually solid, are shiny, conduct electricity, malleable
What is Metals?
100
a change in the form or appearance of a material that does not change it into a new substance; a change in size, shape, or state of matter; no new matter is formed; ex. melting ice, tearing paper, dissolving kool-aid, mixing salt and pepper, muscles of stomach grind food into smaller pieces
What is Physical changes in matter?
200
located in nucleus; has a positive charge; determine element's identity
What is Protons?
200
animals that eat primary consumer animals
What is Secondary Consumer?
200
matter can neither be created nor destroyed, it can only change form; the mass of all substances before a chemical reaction must equal the mass of all substances after a chemical reaction
What is the Law of Conservation and Mass?
200
elements located between metals and nonmetals on the periodic table (along bold stair-step line); have characteristics of both metals and nonmetals
What is Metalloid?
200
characteristics that can be observed when a substance interacts with another substance; ability to react; inability to react; usually hidden
What is Chemical properties of matter?
300
located in electron cloud around nucleus; has a negative charge
What is Electrons?
300
animals that eat only other animals
What is a Carnivore?
300
top number in the element square on the periodic table; identifies the number of protons and electrons in a neutral atom
What is Atomic Number?
300
columns in periodic table; also known as "families"; elements in same group have similar physical and chemical properties because they have the same number of valence electrons
What is a Group?
300
how matter is described according to physical characteristics; characteristics that can be observed without changing the substance into something else; ex. luster
What is Physical properties of matter?
400
electrons in the outer most energy level of an atom; determine the chemical propeties of an element (ex. reactivity - how elements will react with other elements/compounds)
What is Valence Electrons?
400
organisms that make their own food
What is Producers?
400
way of writing changes in the arrangement of atoms during a chemical reaction; uses symbols, subscripts and coefficients; balanced when equation has the same number of atoms of each element on both sides of the equation
What is Chemical Equation?
400
elements found on the right of the periodic table; usually gas, are dull, do not conduct electricity, brittle (not malleable)
What is a NonMetal?
400
atoms are rearranged to make new substances with new properties different than the original substance; starts with reactants, ends with products; ex. rusting nails, decaying matter, burning wood, digesting food is mixed with acid in digestive systemt to break down protein molecules (carbohydrates broken down into sugars)
What is Chemical Reaction?
500
smallest particle of an element; contains protons, neutrons, and electrons
What is an Atom?
500
animals that get their energy from eating plants
What is Primary Consumers?
500
way of describing elements and number of atoms that make up one molecule of a compound; uses symbols, subscripts and coefficients
What is Chemical Formulas?
500
pure substances; found on periodic table; represented by chemical symbol
What is Elements?
500
-production of gas -formation of precipitate -change in temperature -change in color -change in odor
What is Evidence of a chemical reaction?