3RD TERM VOCABULARY

ACID

VINEGAR

SUBSTANCE THAT RELEASES H+ IONS AND PRODUCES HYDRONIUM IONS WHEN DISSOLVED IN WATER.

BASE

BAKING SODA

SUBSTANCE THAT ACCEPTS H+ IONS AND PRODUCES HYDROXIDE IONS WHEN DISSOLVED IN

WATER.

CHEMICAL EQUATION

EXAMPLES

SHORTHAND FORM FOR WRITING WHAT REACTANTS ARE USED AND WHAT

PRODUCTS ARE FORMED IN A CHEMICAL REACTION; SOMETIMES SHOWS WHETHER

ENERGY IS PRODUCED OR ABSORBED.

COMPOUND

SODIUM CHLORIDE

A PURE SUBSTANCE THAT CONTAINS TWO OR MORE ELEMENTS

DIFFUSION

WATER

A TYPE OF PASSIVE TRANSPORT IN CELLS IN WHICH MOLECULES MOVE FROM AREAS WHERE THERE ARE MORE OF THEM TO AREAS WHERE THERE IS LESS OF

THEM.

ELECTROMAGNET

IRON CORE

MAGNET CREATED BY WRAPPING A CURRENT-CARRYING WIRE AROUND AN

IRON CORE.

ENDOTHERMIC

BAKING SODA AND VINEGAR

CHEMICAL REACTION IN WHICH HEAT ENERGY IS ABSORBED.

EXOTHERMIC

FIRE/BURNING

CHEMICAL REACTION IN WHICH HEAT ENERGY IS RELEASED.

CHEMICAL FORMULA

SILVER TARNISHING

• AG S2

COMBINATION OF CHEMICAL SYMBOLS AND NUMBERS THAT INDICATES WHICH ELEMENTS AND HOW MANY ATOMS OF EACH ELEMENT

ARE PRESENT IN A MOLECULE.

NEUTRAL

5 NEUTRONS

HAS NO ELECTRIC CHARGE. A CHEMICAL SUBSTANCE THAT IS NEITHER AN ACID OR

BASE.

MAGNETIC FIELD

MAGNET

SURROUNDS A MAGNET AND EXERTS A MAGNETIC FORCE ON OTHER MAGNETS

GRAVITY (UNIVERSAL LAW OF)

SUN AND EARTH

THE FORCE THAT EXISTS BETWEEN ANY TWO OBJECTS THAT HAVE MASS.

CHEMICAL SYMBOL

H FOR HYDROGEN

NOTATION OF ONE OR TWO LETTER REPRESENTING A CHEMICAL

PRODUCT

BUBBLES

SUBSTANCE THAT FORMS AS A RESULT OF A CHEMICAL REACTION.

PERIODIC TABLE

HYDROGEN

A TABLE OF CHEMICAL ELEMENTS ARRANGED IN ORDER OF ATOMIC NUMBER, USUALLY IN ROWS, SO THAT

ELEMENTS WITH SIMILAR ATOMIC STRUCTURE APPEAR IN VERTICAL COLUMNS.