-
how do liquid water and capor differ from eachother
how close the molecules are, energy
-
if 1 kg of the compound tolune melts at -95C then 500 grams of toluene will melt at what degree?
-95C
-
anything that has mass and takes up space is called ____
matter
-
the measurement of how much matter and object pertains is its
MASS
-
in this states of matter particles are packed together in fixed possitions
solid
-
_____ is the process, which involves gas changing into a liquid
condensation
-
a characteristic that can help tell similar solids apart is their ____
melting points
-
____ and ___ are the same for two sample even with different mass'
boiling point and density
-
examples of mixtures
salad, sugar water,
-
when atoms join together they are calledd___
molecules
-
the resistance of a liquid to flow
viscosity
-
the principle that the total amount of energy remains the same during physical or chemical change
law of conservation of engergy
-
the change in a state from a solid to a liquid
melting
-
the change in a states from a solid directly to a gas without passing through the liquid state
sublimation
-
the change in a state from a liquid to a gas
vaporization
-
the change in a state from a liquid to a solid
freezing
-
a form of energy that comes from chemical bonds
chemical energy
-
the relationship between the temperature and volume of a gas; when temperature increase, volume increase
charles law
-
the force pushing on a surface divided by the area of that surface
pressure
-
a substance that is made up of crystals in which particles are arranged in a regular repeating pattern
crystaline solid
-
the process when vaporization takes place inside a liquid as well as on the surface
boiling
-
change in a state from a gas to a liquid
condensation
-
when vaporization takes place only on the surface
evaporation
-
a term used to describe the relations ship between two variables whose graph is a straight line passing through the point 0,0
directly proportional
-
a solid made up of particles that are not arranged in any specific pattern
anamorphous solid
-
any substance that can flow
fluid
-
the total enrgy of a substance particles due to their movement or vibration
thermal energy
-
a term used to describe the relationship between two variables whos graph forms a curve that slopes downward
vary inversely
-
what are the levels of organization in the human body
- unicells, multicells,
- cells, tissues, organs, organsystems, organisms
-
what are the functions of the skeletal system
- ir provides shape and support
- enables you to move
- protects your inner organs
- produces blood cells
- stores minerals and other materials until you need them
-
whwat are the four types of joints, examples
- hinge-knees elbows
- ball-and-socket-shoulders, hips
- pivot-neck
- glising-wrists, ankles
-
what are the functions of the skin?
- covers and protects the body from injury, infections, ad water loss
- helps regulate temperature
- eliminates waste
- produces vitimin d
- information about the envoirment
-
functions of the digestive system
- break down food
- absorb food into blood
- eliminate wastes
-
circulatory system
- carries needed substances to cells
- acrries waste away from cells
- transports cells that fight disease
-
respiratory sysem
- moves oxygen
- removes carbon dioxide
-
excretory system
collects wastes and removes them
-
nervous system
- recieve information about internam and external events
- respond to the info recieved
- maintain homeostasis
-
endocrine system
- produceschemicals
- regulate change
-
how does perspiration halp maintain body temperature
by evaporating and carrying body heat away
-
which organ system help deliver oxygen to body cells
respiratory, circulatory
-
what carries messages back and forth between the brain and every part of the bodu
nerve tissue
-
which organ system makes blood cells
the skeletal
-
which type of human body tissue can contract or shorten
muscle tissue
-
which substance are produced during respiration
carbon doixide and water
-
when the nervous system makes you feel thirsty what body process is it helping to carry out
maintaining homeostasis
-
what are gas exchange, diaphragm and inhale most cloesly related to
respiratory system
-
which body systems primary function is the continuation of the species
reproductive system
-
which system fuctions primarily to defend the body against deiseas
immune
-
cell membrane
controls what goes in and out of a cell
-
-
organelles
parts of a cell
-
mitochondria
the generator for the cell
-
ribosomes
produce protein for the cell
-
animal cells fo not have...... which cell part
a cell wall
-
___________ cells are found in many-celled organisms
specialized
-
function of a ____________ is to protect and support the cell
cell wall
-
what happens during meiosis
- -sex cells
- -1/2 chromosomes count
- -46 chromosomes
- -23 mother, 23 father
-
-
physical characteristics
phenotype
-
male _ _ female _ _
male xy female xx
-
the gradual change in a species over a period of time
evolution
-
a trait that helps an organism survice and reproduce
adaptation
-
the chance of an outcome
probability
-
homozygou
- two alike alleles
- BB
- bb
- GG
- gg
-
heterozy...
- hybrid different aleles
- Bb
- Gg
-
stages of mitosis
- Interphases
- Prophase
- Metaphase
- Anaphase
- Telephase
- Cytokinesis
-
-
metaphase
meet in the middle
-
-
telephase
starts to divide O=O
-
cytokinesis
totally split O O
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