Steps of the scientific method correct answers Make an Observation
Form a Question
Form a Hypothesis
Conduct an Experiment
Analyze the data and draw a conclusion
Independent variable correct answers One the scientist manipulates
Dependent variable correct answers Cannot be changed by experimenter, is what it being
measured by the independent variable
Random assignment correct answers Minimizes the differences between groups in an experiment
Controlled experiment correct answers the researcher assigns subjects randomly to either the
experimental or control group
Blind experiment correct answers subjects are not aware of whether they are in the treatment or
control group
Double-blind experiment correct answers Neither researchers nor subjects are aware of who is
assigned to a treatment/control group; minimizes bias
Primary sources correct answers written by the researchers themselves; most reliable
Element correct answers The fundamental form of matter, are composed of atoms that cannot be
broken down by normal physical means
, Atom correct answers The smallest units that have the properties of any given element
Molecule correct answers Can be composed of the same or different atoms, but generally is
composed of multiple atoms
Polarity correct answers Different regions, or poles, of the molecule have different charges
Covalent bonds correct answers when atoms share electrons (strongest)
Ionic bonds correct answers when atoms transfer electrons (these bonds form when charged
atoms are attracted to each other by similar, opposite charges)
Hydrogen bond correct answers When a positive atoms is attracted to negative atom. (the
weakest bond)
carbohydrates correct answers (includes Glucose) can be monosaccharides (a single ring-shaped
structure), disaccharides (two rings), or polysaccharides (multiple rings). Ex: Glucose is a
monosaccharide, while cellulose is a polysaccharide of 3 rings.
fats correct answers Fatty-acid tails and can be in two different forms: saturated and unsaturated.
saturated fats correct answers When the carbons of a fatty acid are bound to as many hydrogen
atoms as possible, the fat is __________________.
unsaturated fats correct answers When there are carbon-carbon double bonds, the fat isn't
saturated in hydrogen
acids, bases correct answers ___________ have more H+ ions and ________ have more OH-
ions