Feb 2024 DWT Science Vocab Session

TROPOSPHERE

• a layer of the atmosphere closest to Earth where most of the weather happens

• a layer of gas and suspended solids extending from the Earth's surface up many thousands of miles

• a layer of the atmosphere where ozone is concentrated

• a layer of the atmosphere where comets and meteors burn up

CATALYST

• a substance that speeds up the rate of a chemical reaction but does not get used up in the reaction

• a type of mixture in which the different parts are blended evenly so that the mixture is the same throughout

• characteristics of substances that describe their composion, reactivity and how the substance changes indo different substances

• the fact or quality of serving as an instrument or means to an end, agency

Tags

NGSS.HS-PS1-5

HOMEOSTASIS

• maintenance of an internal balance for a living organism

• an organism whose cells are characterized by the lack of a defined nucleus

• same or similar composition throughout

• similarity in fossil content and in order of arrangement of stratified deposits that are not necessarily contemporaneous

HETEROZYGOUS

• having two different alleles for a trait

• a type of cell or organism that has identical rather than different alleles for a particular trait

• an organism that cannot produce its own food

• the form of a trait that will be masked unless the organism is homozygous for this trait

Tags

NGSS.HS-LS4-3

ACCELERATION

• the change in speed

• indicates both an object's speed and direction

• the quality of moving or reacting with great speed

• a place where someone or something is located or has been put

Tags

NGSS.MS-PS2-2

AMPLITUDE

• the height of a wave

• the relative frequency of a sound as perceived by a listener

• a harsh discordant mixture of sounds

• a unit used to measure the intensity of a sound or the power level of an electrical signal by comparing it with a given level on a logarithmic scale

Tags

NGSS.MS-PS4-1