everything 3 Flashcards
<p>what are some examples of warm blooded?</p>
<p>mammals, birds</p>
<p>What does vertebrate mean ?</p>
<p>has a back bone</p>
<p>What does invertebrate mean?</p>
<p>doesn't have a back bone</p>
<p>which kingdom do both vertebrate and invertebrate come from?</p>
<p>Animalia</p>
<p>what does a open circulatory system do?</p>
<p>blood is pumped into the body cavity and not enclosed in blood vessels</p>
<p>What does a closed circulatory system do?</p>
<p>blood is pumped by the heart and is enclosed in blood vessels</p>
<p>what animal types belong in open circulatory system?</p>
<p>most invertebrates, insects, crustaceans, most mollusks</p>
<p>what animal types belong in closed circulatory system?</p>
<p>most vertebrates, mammals, reptiles, fish, birds</p>
<p>what does the circulatory and respiratory system do?</p>
<p>is responsible for the flow of blood, nutrients, oxygen, and other gasses, and hormones to and from cells</p>
<p>what does a circulatory and respiratory system consists of?</p>
<p>heart (cardiovascular), lungs (pilmonary), arties, veins, coronary and portal vessels</p>
<p>what does a digestive and excretory system do?</p>
<p>responsible for taking in food and breaking it up into nutrients the body will use to fuel and responsible for removing the waste left over after food is processed</p>
<p>what does a digestive and excretory system consists of?</p>
<p>gastrointestinal tract (stomach and intestines), bladder, colon, kidneys (filter the blood)</p>
<p>what does the nervous, endocrine, and immune system do?</p>
<p>master control system</p>
<p>what does the nervous, endocrine, and immune system consists of?</p>
<p>brain: hypothalamus, thalamus, pituitary, spinal cord, neurons, hormones</p>
<p>Who created the first classification of living things and what is it called?</p>
<p>Carl Linnaeus & Systema Naturae</p>
<p>what is the order of the classification of living things?</p>
<p>domains: archaea, eubacteria, eukaryotekingdom: plantae, Animalia, fungi, protists, eubacteria (monera), archaebacteriaphylumclassorderfamilygenusspecies</p>
<p>what are the functional level of species?</p>
<p>species, populations, communities, ecosystems</p>
<p>what is species?</p>
<p>group of interbreeding organisms that do not ordinarily breed with members of other groups & ex: polar bear is a hypercarnivores bear whose native range lies largely within the artic circle</p>
<p>what is populations?</p>
<p>compromises all the individuals of a given species in a specific area or region at a certain time which can evolve over time because of genetic variation & ex: population includes all the polar bears in artic circle, polar bear species can reflect genetic variance</p>
<p>what is communities?</p>
<p>all populations in a specific area or region at a certain time, there are many interactions among species in a community (food webs)</p>
<p>what are ecosystems?</p>
<p>dynamic entities composed of the biological (living) community and the abiotic (nonliving) environment & ex: artic ecosystem is made up of water/ice, the animals, and the atmosphere in that area</p>
<p>what are producers?</p>
<p>produce their own food from sunlight, carbon dioxide, water</p>
<p>what are consumers?</p>
<p>eat their food</p>
<p>what are the four consumer groups?</p>
<p>primary, secondary, tertiary, quaternary</p>
what are primary?
herbivores who eat plants such as bunnies
what are secondary?
eat primary consumers such as snakes
what are tertiary?
eat secondary consumers such as birds
what are quaternary?
eat tertiary consumers, usually carnivores such as hawks, this is where the food chain ends
what are decomposers?
turn dead material such as animal carcass or dead tree into soil by recycling nutrients as food such as earthworms, small soil beetles, fungi, and bacteria
what are the interactions among organisms?
competition, predation, mutualism, commensalism, parasitism
what is competition?
two or more organisms rely on the same environmental resources & ex: lions and cheetahs eat the same so they compete within their ecosystems
what is predation?
behavior of one animal feeding on another & ex: lion is predatory, and zebra is prey
what is mutualism?
symbolic relationship where both organisms benefit & ex: bacteria in digestive track keeps humans healthy, bacteria feds off what humans eat
what is commensalism?
a symbiotic relationship where one organism benefits and one doesn't but is unharmed & ex: cattle egret sits on tip of the cattle and eats bugs that land on the cattle
what is parasitism?
symbiotic relationship where one organism benefits and one is harmed & ex: tick living on a dog benefits while the dog is harmed
What is carrying capacity?
maximum population of a particular organism that a given environment can support without detrimental effects
what is a solid?
particles are very close together
what is a liquid?
particles are closer together than gas but farther apart than solid
what is gas?
particles are very far apart
what are physical results of change in size and shape?
tearing, folding, melting, freezing, evaporating, cutting
what are the chemical results of any change that forms a new substance?
rotting, burning, cooking, rusting
how do changes in matter happen?
by removing or adding energy in the form of boiling, condensation, and evaporation
what is boiling?
rapid vaporation of a liquid (liquid to gas)
what is condensation?
water that collects as droplets on a cold surface when humid air is on contact with it (gas to liquid)
what is evaporation?
vaporation of liquid that occurs from the surface of a liquid into a gaseous phase (liquid to gas)
what is temperature moderation?
when water evaporates, it leaves behind cooler air & ex: when you walk into a grocery store after you workout and you get chilly
what is a mixture?
a material system made up of two or more different substances that are mixed but not chemically combined
what are the two types of mixtures?
homogeneous and heterogeneous
What is a Homogenous mixture?
can't see the different parts of the mixture
homo=
can't
what are examples of a homogenous mixture?
creamy peanut butter, Kool-Aid
What is a heterogeneous mixture?
you can see the different parts of the mixture
hetero=
can
what are examples of heterogeneous mixture?
chicken noodle soup
what is colloid mixture?
one substances of microscopically dispersed insoluble particles is suspended throughout another substance & particles do not settle and cant be separated out by ordinary filtering
what kind of mixture is colloid mixture?
homogenous mixture
what is solution?
disolving agent is the solvent
what are some examples of solution?
salt water, sugar water
what is Suspension mixture?
contains solid particles that are sufficiently large for sedimentation
what kind of mixture is solution?
homogenous mixture
what are examples of suspension mixture?
orange juice, salad dressing
what kind of mixture is suspension?
heterogeneous mixture
what does the PH scale do?
measures of acidity or alkalinity of water soluble substances
what are the ph values?
acidic: 0-6, neutral: 7, alkaline: 8-14
what are the acidic?
battery acid, stomach acid, vinegar, grape fruit, tomato juice, coffee, urine
what are the neutrals?
water
what are the alkaline?
salt water, baking soda, hand soap, ammonia, soapy water, bleach, drain cleaner
what are atoms?
Smallest particle of an element that retains its chemical properties
what are electrons?
they are negatively charged particles that circle around the nucleus
what are neutrons?
they are neutrally charged particles that are located in the atoms nucleus
what are protons?
Positively charged particles that are located in the atoms nucleus
what does the atomic number do on the periodic table?
how the elements are identified and the number of protons in the nuclei
what groups are the periodic table broken down into?
groups: vertical/columns, periods: horizontal/rows, metals: shiny, good conductors of electricity, nonmetals: dull, poor conductors of electricity, metalloids: dull or shiny, good semiconductors, noble gases: last column on the right of the table
what is the reactivity of metals and examples ?
reactivity increases down and to the left of the periodic table & ex: potassium (K) is more reactive than magnesium (Mg)
what is the reactivity of non metals and examples?
reactivity increases up and to the right of the periodic table & ex: fluorine (f) is more reactive than iodine (I)
Order of most reactive to least reactive:
potassium (K), sodium (Na), calcium (Ca), magnesium (mg), Aluminum (Al), carbon ©, zinc (Zn), iron (Fe), tin (Sn), lead (Pb), hydrogen (H), Copper (Cu), Silver (Ag), gold (Au), platinum (Pt)
what are molecules?
smallest particle in a chemical element or compound that has chemical properties of that element or compound
characteristics of water:
polar molecule & has 2 hydrogen elements and 1 oxygen element
what properties does water have?
cohesion, adhesion, high specific heat, high heat of evaporation, lower density of ice, and high polarity
what is cohension?
water is attracted to other molecules, two drops of water close together quickly combine
what is adhesion?
water is attracted to other molecules, allows water to stick to roots
what is high specific heat?
allows water to moderate temperature
What is high heat of evaporization?
gives off cooling effects, like sweat, it allows he evaporation of water to cool off the body
what is low density of ice?
water is less dense than ice, causing ice to float in water
____ is less dense than ____, which allows the ice cube to float
ice is less dense than water, which allows the ice cube to float
what is high polarity?
makes water a powerful solvent
what are compounds?
two or more elements bonded together
what is important to understand about compounds?
all compounds are molecules but not all molecules are compounds
what are compounds made up of?
the are made up of two different molecules (CO2) and single elements like O2
what are ions?
changed elements or molecules that has lost or gained one or more electrons
what are isotopes?
two or more forms of the same element that have the same number of protons but different number of neutrons
what is a force?
any interaction that when unopposed will change the motion of an object
what is fiction?
force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other
what are the 3 types of force?
push, pull, friction
What are Newton's Three Laws of Motion?
an object either remains at rest of continues to move at a constant velocity unless acted upon by a force, for every action there is an equal and opposite reaction, force is equal to the change in motion per change in time
What is equilibrium?
a state in which opposing forces or influences are balanced.
What is magnetism?
force exerted by magnets when they attract or repel each other
Opposite poles attract
N & S
same poles repel:
S & S, N & N
common units of measure in physics (unit, symbol, measure)
hertz- Hz- frequency, newton- N- force, weight, density- P- density, Joule- J- energy, work, watt- W- power, volt- V- electrical voltage, degree celsius- C- temperature, gram/kilogram- g/kg- mass
what is density?
the amount of matter an object has to its volume
density equation
D=m/v
what is energy?
property that can be transformed in between and among objects
what is kinetic energy?
object in motion, the actual movement of an object
what is an example of kinetic energy?
rock rolling down a hill
Where is the highest kinetic energy?
at the bottom
what is potential energy?
energy possessed by an object or an individual by virtue of its position relative to others
Where is the highest potential energy?
rock at the top of the hill has potential to roll down therefore it has potential energy OR a swing bring pulled to the top before it is released has potential energy
what are the types of energy?
mechanical, electrical, thermal
what is mechanical energy?
objects in motion
what is an example of mechanical energy?
swing
What is electrical energy?
moving through the wire
what is an example of electrical energy?
light bulb
What is chemical energy?
rearrangement of molecular structure
what is an example of a chemical energy?
lighting a match, photosynthesis
what is heat transfer?
exchange of thermal energy between physical systems
what is convection?
transfer of heat by the actual movement of the warmed matter
what is conduction?
transfer of heat from particle to particle
what happens when you place a cold spoon in hot soup?
the spoon will get hotter until the soup and spoon are the same temperature
what is radiation?
transfer of heat from electromagnetic waves through space
what do electrical circuits allow?
electricity to flow in a loop and power different things
what are the two types of circuits?
series and parallel
what is a series circuit?
components are arranged end to end, the electric current flows through the first component then through the next component and so on until it reaches the battery again
What is a parallel circuit?
circuit with branches that allow multiple applications to happen at once
what are conductors?
good for electricity
what are examples of conductors?
wire, metal, water
what insulators?
bad for electricity
what are examples of insulators?
rubber, clay, polystyrene (styrofoam)
what is lighting?
a giant spark of electricity in the atmosphere between the clouds, air, and ground
what does air do for lighting?
acts as the insulator between the positive and negative charges in the cloud
when does cloud to ground lighting occur?
between opposite charges, therefore there needs to be negative charge in the top of the cloud and a positive charge on the ground or vis verses
what are scientific theories?
based on a body of evidence and many experiments, trials, and tests
what are scientific explanations?
describe the mechanisms for natural events
what are scientific laws?
regulations or math descriptions or natural phenomena
What is a hypothesis?
an idea that many contribute important new knowledge for explanation of scientific theory (if/then statement)
What are the steps of the scientific method?
make observation, ask a question, form a hypothesis, conduct an experiment
what are the 5 things students do in science?
observe, classify, predict, hypothesize, and investigate
what does observe mean?
employ the five senses to interact with phenomena and recording findings
what does classify mean?
arrange living and nonliving things based on attirbutes
what does predict mean?
make assumptions based evidence
what is hypothesize mean?
state a prediction based on evidence
what does investigate mean?
conduct experiments
What is the scientific method?
body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge
what is a experiment?
procedure carried out to refute or validate a hypothesis
an experiment helps student understand what kind of relationship and by doing what?
cause and effect by demonstrating what outcome occurs when a particular factor is manipulated
what is an independent variable?
element changed in the experiment
what is a dependent variable?
what is being measured during the experiment
what is the control variable?
elements that they want to stay the same
what does a line graph show?
illustrates trends in data over a period of time or a particular correlation
what does a bar graph show?
used to compare variables and compare data
what does a pie graph show?
used to show percentages or proportional data
where are aquifers located? (which layer of earth)
earth's crust
what is the doppler effect?
A change in sound frequency caused by motion of the sound source, motion of the listener, or both.
what is a period (sound wave)?
time between wave crests
what is frequency?
the number of complete wavelengths that pass a point in a given time
What is amplitude?
Height of a wave
what is wavelength?
The distance between crests of waves, such as those of the electromagnetic spectrum.
What are mechanical waves?
waves that require a medium to travel through
What are traverse waves?
waves that vibrate up and down
What are longitudinal waves?
waves that travel through compression
what are the properties of energy waves?
Amplitude, wavelength, frequency, period, speed, phase
what is phase (sound wave)?
Position on a wave cycle at any given time
in a sound wave, loudness depends on what?
amplitude
what is pitch (sound wave)?
How high or low a sound is, frequency of the vibration
what does a lunar eclipse look like?
the earth is in the middle
what does a solar eclipse look like?
the moon is in the middle