5th grade Science Chapter 10 Test

The beginning substance in a chemical reaction is the

two or more kinds of substances that have been combined while keeping their chemical properties

a substance that is neither an acid nor a base; example: water

poor conductor

characteristics of an acid substance

a sour substance that contains hydrogen; reacts with metal; examples: vinegar and lemon juice

Which are examples of solutions?

the scale scientists use to measure how acidic or basic a substance is

a compound produced by a reaction between an acid and a base

Label the red particle (positive charge +):

a heterogeneous mixture with tiny, suspended clumps or particles

Label the green particle (negative charge -):

characteristics of a base substance

What are the 3 main factors that affect a solution's dissolving rate?

separating solid materials from liquid materials in mixtures

Label the blue particle (neutral charge):

a mixture that is completely mixed so that the particles blend in with each other

a mixture that is not completely mixed

a subatomic particle with a positive electrical charge

Label the particles within the purple circle:

the study of the composition and interactions of matter

Which are examples of colloids?

the change of matter that does not change the identity of the substance and is usually reversible

a mixture that usually has a milky or cloudy appearance

matter that has definite volume and shape

Who is called the Father of Chemistry?

all matter is made of atoms which combine in different ways to form different substances

good conductor

a substance made from a single type of atom

sometimes gaseous

separating solid materials from liquids in a mixture

a chemical symbol is a letter or pair of letters that represent a....

matter that has definite volume and can fill the shape of a container

conducts heat

the parts of a chemical reaction are its reactants and its ______?

the property of matter that makes it resist changes in motion

the positive center of an atom

the process of change from one state to another

the study of interactions between matter and energy

a substance with two or more types of elements linked together

Who arranged the periodic table of the elements?

Which are examples of suspensions?

the two parts of a solution

separating solids from liquid in solutions

shiny

a heterogeneous mixture with larger particles of different densities that settle out

law of conservation of mass

high melting point

a bitter substance that reacts with acids to neutralize them; examples: baking soda and soap