What are the steps in he scientific method in order?
Identify the problem, gather information, state the hypothesis, design and carry out an experiment, make observations and record data, organize and analyze data, state conclusion
a suggested explanation to a problem or observation based upon known information
used to test a hypothesis
anything that can affect the reslts of an experiment
observations and measurements made during an experiment
part within the experiment that is maintained without change in order to provide a comparison fo the part of the experient containing the variable
hypothesis that has been teste and supported by a great amont of evidence over a long period of time
a statement describing (but not explaining) a natral event ofr pheonmenon
a new use to which results are put or new technique developed
a summary that explains whether or not the dada supports the hypothesis
the subject that does not reeive the experimental treatment
is tested in some way
material one works with during an experiment
what is being measured or observed
What is another name for the independent variable?
What is another name for the dependent vaiable?
What are the characteristics of life?
mde up of cells (unicellular or multicellular), reprodue (asexual/sexual), universal genetic codes (DNA/RNA), grow and develop, respond to environment (stimulus) stable internal environment (homeostasis), change over time
smallest unit of atter
positive charge, in the nucleus
neutral charge,in he nucleus
negatve charge, outside the nucleus
positively charged center of the atom
pure substance made up of one type of atom
number of protons
number of protons+ number of neutrons
atoms of the same element with a different number of neutrons
two or more elemens combined in definirte proportions
Two types of chemical bonds in compounds are:
Ionic an covalent
transfe of electrons between atoms, produces ions
sharing electrons between atoms
when electrons are shared equally they are ______ when they are shared non equally they are _______.