Science Terms Flashcards

1
Q

allotrope

A

a substance created when an element combines with itself to become a compound. o3 (ozone) and C6 (diamond)

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2
Q

alloy

A

A metal that is a mixture composed of metal elements. Brass (copper with a bit of zinc), pewter (tin with a bit of lead) steel (iron with nickel and titanium

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3
Q

amber

A

petrified sap

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4
Q

ambergris

A

A waxy substance found floating in the tropical waters

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5
Q

annual

A

A plant that grows over only one season

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6
Q

apiary

A

A place where bees are kept

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7
Q

arthropod

A

A huge animal phylum that includes insects, crustaceans, arachnids

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8
Q

bryophyta

A

the category of plants that includes all mosses

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9
Q

Cambrian Period

A

Part of the Paleozoic Era, began when the oldest easily identifiable fossils first appeared

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10
Q

carnivorous

A

cats, birds of prey, sharks

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11
Q

Cenozoic Era

A

“recent life” when mammals and flowering plants began to flourish

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12
Q

class

A

A major subdivision of phyla into which organisms are classified.

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13
Q

compound

A

Any mixture of elements (H2O)

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14
Q

coniferous

A

cone bearing trees: pines, spruce, yews

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15
Q

Cretaceous Period

A

Part of the Mesozoic Era, the time during which dinosaurs peaked and then died out

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16
Q

deciduous

A

trees that lose their leaves in the winter: maple, oak, sycamore

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17
Q

eon

A

great span of time defined by major events

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18
Q

epoch

A

division of geologic time less than a period and greater than an age

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19
Q

era

A

unit of geologic time that includes two or more periods grouped together

20
Q

eukaryote

A

an organism composed of one or more cells, containing visibly evident nuclei and organelles

21
Q

eutheria

A

“placental” subclass of mammals that include mammals which nourish the fetus with a placenta: dogs, people, bats, whales

22
Q

family

A

A subdivision of an order in the classification of living organisms. Under the order of primates, humans are classified into the family of hominidae

23
Q

formicary

A

ant’s nest

24
Q

genus

A

subdivision of a family. humans are classified in the genus Homo

25
granivore
An animal that eats grains and seeds: squirrels, voles, birds.
26
halogen
Any of the five elements that form part of group VIIA of the periodic table: fluorine, chlorine, bromine, iodine, and astatine
27
igneous rocks
rocks that solidify from a molten or partially molten state: basalt and granite
28
insectivore
anteaters, woodpeckers
29
Jurassic Period
Part of the Mesozoic Era, the middle period of dinosaur dominance
30
kingdom
the most basic classification unit of living organisms: Plant, Animal, Fungi, Moneran, Protista
31
marsupial
aka "metatheria" A form of mammal born without a placenta and nourished in its mother's pouch after birth: kangaroo, koala, and opossum
32
Mesozoic Era
Geologic era between the Paleozoic Era to the Cenozoic Era, marked by the rise and fall of dinosaurs
33
metamorphic rocks
rocks that have been altered by heat, pressure, and/or the chemical action of fluids and gases: slate, quartzite, marble
34
metatheria
marsupial
35
mollusk
ANy of a large phylum of invertebrate animals enclosed in a shell- snail, clam, octopi, squids
36
Moneran
One of the basic kingdoms. Includes bacteria, primitive pathogens, blue-green algae
37
monotreme
protheria. A strange, primitive sort of mammal that reproduces by laying eggs. Platypuses and echidnas
38
noble gases
Elements found in the far right-hand side of the periodic table. Can't mix with other elements. Argon, Helium, Krypton, Neon, and Xenon
39
perennial
tulip, azalea, maple trees
40
piscivore
seals, loons, penguins
41
pistil
the female reproductive organ of a plant
42
prokaryote
A cellular organism that does not have a distinct nucleus.
43
sedimentary rocks
shale, sandstone, limestone
44
species
human is Homo sapiens
45
stamen
the male reproductive organ of a plant
46
tracheophyta
plants with water-carrying systems that allow them to live on land solo, unlike mosses
47
Triassic Period
when dinosaurs first appeared