True/ FalseVocabulary pH Carbon Atomic Energy

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QUESTION:

•A change in matter that creates a new substanceANSWER:

•Chemical Change

QUESTION:

• A substance present before a chemical change

ANSWER:

• reactant

QUESTION:

• man- made plastics

ANSWER:

• synthetics

QUESTION:

•Compound formed by a reaction between an acid and baseANSWER:

• salt

QUESTION:

• The building blocks of all living things

ANSWER:

• organic compound

QUESTION:

• What number is neutral on the pH scale?

ANSWER:

• 7

QUESTION:

• Examples: drain clear, vinegar, ammoniaANSWER:

• base

QUESTION:

• If you have a base of 9, what acid level do you need to make it neutralized?

ANSWER:

• 5

QUESTION:

• Acids taste _______.ANSWER:

• sour

QUESTION:

• Materials that change color in the presences of acids and bases are __________.

ANSWER:

• indicator

QUESTION:

• A poisonous gas made from fuels not completely burning.ANSWER:

• carbon monoxide (CO)

QUESTION:

• A molded material that can retain its shape.

ANSWER:

• plastic

QUESTION:

• Gas that comes from chicken poop.

ANSWER:

• Methane

QUESTION:

•What is frozen carbon dioxide?

ANSWER:

• dry ice

QUESTION:

• Organic compound that stores energy.

ANSWER:

• lipids

QUESTION:

• Element that gives off energy in the form of rays or particles

ANSWER:

• radioactive

QUESTION:

• Strongest type of radiation.

ANSWER:

• gamma rays

QUESTION:

Type of radiation that can not pass through paper.

ANSWER:

• alpha particles

QUESTION:

•When a neutron splits a nucleus into two or more piecesANSWER:

• nuclear fission

QUESTION:

•A device that measures the radioactivity of a substance.ANSWER:

• Geiger counter

QUESTION:

•Leaves changing color is a chemical reaction.

ANSWER:

• true

QUESTION:

•A synthesis reaction breaks down into more simple substancesANSWER:

• false

QUESTION:

• Changing the concentration of a reaction will not affect the chemical reaction

ANSWER:

• false

QUESTION:

•Adding ammonia to a mixture would make it more acidic.ANSWER:

• false

QUESTION:

•A lemon is a 2 on the pH level.ANSWER:

• true