Benchmark test Flashcards
what are greenhouse gases
carbon, mathane, and H2O. they trap and hold in heat
what is the goal of science
to investigate and undertstand the natural world, to explain events in the natural world, and to use those explanation to make useful predictions
quanatative data
exact number measurements of data
qualatative
desciptive data
what are the 8 characteristics of a living thing
made of cells, reproduce, based of a universal genentic code, grow and develop, obtain and use materials and energy, respond to environment, maintain a stable invernal environment, and change over time
what are the 8 characteristics of a living thing
made of cells, reproduce, based of a universal genentic code, grow and develop, obtain and use materials and energy, respond to environment
what is a centrifudge
an obejct that breaks cells open to get DNA
what is true about a compound
the chemical and physical properties are very different
what is a valence electron
outermost electron that is involved in chemical reactions
what is the difference between a pos and neg charge
a pos charge gives and a neg charge takes
what is an ionic bond
bonds formed hen one or more electros are transferred from one atom to another
true or false: ice is more dense than water
false…ice is less dense
what is a monosacharides
a carbohydrate
what are fats, proteins, and nucleic acids made of (different_
fats are made of fatty acids proteins are made of amino acids, and nuclic acids are made from DNA
what to enzymes do to chemical reactions
speed them babies up
what are the levels of organization
Biosphere, ecosystem, community, population, organism, group of cells, cells, molecule