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50 Cards in this Set
- Front
- Back
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What is matter? |
anything that occupies space and has mass |
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What are the three states of matter? |
solid, liquid, and gas
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What is an atom? |
the smallest unit of an element |
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What is ionic bonding? |
giving and sharing |
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What is covalent bonding? |
sharing |
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What are the two types of energy? |
Kinetic energy and potential energy |
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What are endothemic reactions? |
require or absorb heat |
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What are exothermic reactions? |
give off heat |
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What is a solution? |
A homogeneous mixture of one or more substances within another substance
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What is a solvent? |
the substance in which it is dissolved |
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What is a solute? |
the substance that is dissolved |
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What is concentration? |
The ratio of the solute in the solvent |
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example of suspension |
blood |
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What is diffusion? |
The net movement of molecules from an area of higher concentrattion of a substance to an area of lower concentration of that substance |
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What is equilibrium? |
When there are no longer places of higher and lower concentrations, a state of equilibrium has been reached, and diffusion stops |
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Difference between osmosis and diffusion |
the diffusion of water molecule
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What are the basic unit of organic compounds? |
structural, enzymatic, storage |
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The basic unit of carbohydrates |
monosaccharides |
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examples of monosaccharide |
glucose, galactose, fructose |
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example of disaccharide |
sucrose |
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examples of polysaccharide |
starch, glycogen, cellulose |
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saturated fats |
solid |
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unsaturated fats |
liquid |
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examples of steroids |
testosterone, estrogen, cholesterol |
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building blocks of proteins |
aminoacids |
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the shape of DNA |
double helix |
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replication |
producing two new DNA molecules from an old one |
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parts of nucleotide |
sugar, phosphate, base |
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What does the atomic numer tell us? |
the numbers of protons |
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What element do all organic ccompounds contain |
carbon |
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Activation energy |
enerdy necessary to start a reaction |
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What is an ion |
Atoms with a charge( having unequal numbers of protons and electrons) |
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Universal solvent |
water |
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What did the Doctrine of Humors teach? |
Greek; the fact that everybody believes it does not make it true. |
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What did the Doctrine of Signature teach? |
Babylonian; the fact that something works or appears to work does not make it true. |
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Inductive Reasoning |
begins with observed facts and leads to a general conclusion. |
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Deductive Reasoning |
begins with general principles and leads to specific conclusion about particulars |
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What is a scientific model? |
a simplify description of a far more complex object or concept |
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What are the steps to the scientific method? |
1.Define the problem 2.Do preliminary research 3.Form a hypothesis |
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What is bias? |
what someone wants to believe |
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What are the limitations of science? |
1.cannot explain a phenomena 2.senses can be fooled 3.mechanical errors 4.somethings are beyond the domain of Science 5.people have biases 6.you can't say "100% of the time" 7.cannot prove a universal statement 8.cannot be used to establish truth 9.cannot make value or moral judgement |
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Pure science |
knowledge that scientific activities have produced; uses research method |
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Applied science |
using knowledge gain to solve problems; uses technical method |
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Attributes of life |
1.Exhibits movement 2.Achieves growth by assimilation 3.Reproduces 4.Comes from pre-existing life 5.Has similar chemical makeup 6.Is composed of cells 7.Exhibits irritability be responding to forces in their environment 8.Requires energy 9.Maintain high level of organization 10.Faces death |
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What is irritability? |
the capacity of an organism to respond to stimuli |
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Who was the father of microscopy? |
Leeuwenhoek |
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What is refraction? |
bending light as it passes through a substance |
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What is spontaneous generation? |
living things come from non-living materials |
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Essay#1:Describe the proper way to carry a microscope. |
(1)Don't bump the microscope against the side of the cabinet when removing or returning it (2)Carry the microscope with two hands, one under the base and the other on the arm (3)Be sure to keep the microscope close to your body in an upright position so that the ocular does not slip but of the body tube (4)Place the microscope gently on the table at least three inches from the edge. |
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Difference between control group and experimental group |
independent variable |
