Matter and Change TEST Flashcards
What is a means of testing a hypothesis?
Experiment
What is a quality or condition of a substances’ composition?
Physical Property
What is a matter with a definite shape AND a definite volume?
Solid
What is an approach to a solution of a scientific problem?
Scientific Method
What is matter that flows and has a definite volume - BUT NOT a definite shape?
Liquid
What is matter that take the shape and volume of the container?
Gas
What is another name for a homogeneous mixture?
Solution
What is a mixture that looks the same throughout?
Homogeneous
What is a combination of 2 or more chemicals that cannot be broken down by physical means?
Compounds
What is the study of substances and the changes they undergo?
Chemistry
What are the building blocks of matter?
Elements
What is the type of chemistry that studies all substances WITHOUT carbon?
Inorganic Chemistry
What is anything that has mass and takes up space?
Matter
What is the type of chemistry that studies the composition of substances?
Analytical Chemistry
What is the chemical symbol for Sodium?
Na
What is the chemical symbol for Potassium?
K
What is the chemical symbol for sulfur?
S
What is the chemical symbol for silver?
Ag
When would a chemical change occur in a piece of wood?
When it is burned or when he decays
What are some examples of a physical change?
Freezing or melting
Boiling or condensing
Cutting or grinding
What is a property that depends on the amount of matter a sample has?
Extensive
What is the starting substances of a reaction?
Reactant
What is the term for what elements are represented by?
Chemical symbol
What is the process where a liquid is boiled - turns into a vapor - and then is condensed back into a liquid?
Distillation
What describes a substance that although is in a gaseous state - it is typically a liquid or solid at room temperature?
Vapor
What is a particular type of matter that has uniform and a definite compostition?
Substance
What is a type of EXTENSIVE property?
Mass
Which of the following would be a compound?
oxygen
hydrogen
water
carbon
Water H2O
Which term does NOT fit with the other on the list?
ice
orange juice
water
steam
ice / water / steam are all the same compound just at different stages
Orange juice is the answer
What type of matter is gas?
it takes the shape and volume of the container
What type of change occurs when iron and oxygen combine to form iron oxide?
a chemical change
Be able to state if the following is an ELEMENT / COMPOUND / HETEROGENEOUS MIXTURE / HOMOGENEOUS MIXTURE
Aluminum
phosphorous
Soil
Hydrogen peroxide
Water
vegetable soup
Coffee
apple juice
Copper
granite
Fruit salad
table salt
hydrogen
Aluminum - element
phosphorous - - element
Soil - - heterogeneous mixture
hydrogen peroxide - - compound
Water - - compound
vegetable soup - - heterogeneous mixture
Coffee - - homogeneous mixture
apple juice - - homogeneous mixture
Copper - - element
granite - - heterogeneous
Fruit salad - - heterogeneous mixture
table salt - - compound
hydrogen - - element
Be able to stat if the following is a PHYSICAL or CHEMICAL change
digesting food
crushing chalk
melting ice
iron rusting
breaking glass
cutting paper
burning wood
burning matches
digesting food - - chemical change
crushing chalk - - physical change
melting ice - - physical change
iron rusting - - chemical change
breaking glass - - physical change
cutting paper - - physical change
burning wood - - chemical change
Be able to describe how you would separate sand and rice?
Use a sieve - to shake the sand through and the rice will remain in the sieve
Be able to describe how you would separate salt and metal washers
Use a magnet to pick the metal washers from the pile
Be able to state how to separate sand and salt
mix it with water - - drain the water from the substance and let both dry. When water evaporates you will have salt left over
Be able to identify the elements and their symbol
Aluminum
Mercury
Fe
Ag
Phosphorous
Antimony
Mn
O
Bromine
Cobalt
Cu
Sn
Aluminum - - Al
Mercury - - Hg
Fe - - Iron
Ag - - Silver
Phosphorous - - P
Antimony - - Sb
Mn - - Manganese
O - - Oxygen
Bromine - - Br
Cobalt - - Co
Cu - - Copper
Sn - - Tin
What are the 4 signs that a chemical reaction has occured?
1) There is a color change
2) There is a transfer of energy
3) A precipitate has formed
4) There is a production of gas
Be able to complete the matter chart
Ask Mrs. K for extra copies to practice
