Praxis General Science Content Knowledge 5435 Q&A Bundle

Which of the following would not necessarily contribute to the reduction of uncertainty when investigating a scientific phenomenon? A new hypothesis. Which of the following is a theory? plate tectonics A student sorts a pile of different rocks based on their appearances and then uses a nail to...

Option (C) is correct. For any marked measuring device, one place beyond the numerical place of the marking is estimated, and this determines the correct number of significant figures. If the thermometer is marked to 0.1°Czero point one degrees Celsius, the hundredth place should be estimated and t...

Which of the following guidelines should be used when collecting data during an experiment? a. Vary only one factor at a time when studying how a system responds. b. Take all measurements at the same time. c. Make sure that the measurements agree with the hypothesis that motivated the experimen...

Chemical Energy Energy is contained in the bonds between atoms in compounds or molecules, such as food or a car battery Electrical Energy Energy carried by the flow of electrons in a n electric conductor. Ex: lightning Also man-made as a source of power for homes and industries by burning fuels...

Which of the following guidelines should be used when collecting data during an experiment?Vary only one factor at a time when studying how a system responds. Option (A) is correct. In an experiment, only one factor at a time should be varied. This factor is called the manipulated or independent va...

The Scientific Method consist of the following steps: (1) Make an observation (2) Create a question (3) Form a Hypothesis (4) Conduct an experiment (5) Collect and analyze data (6) Form a conclusion Observation the analysis of information using basic human sense: sight, sound, touch, taste, ...

Scientific method a logical problem-solvingtechnique that requires reasoning, skepticism, and direction. It is used to discover the truth by confirming (or rejecting hypotheses, thoughts, and ideas. Null hypothesis states that the expected cause (ind. Var.) Has no effect on the outcome (dep. Var....

Scientific method 1) make observations 2) form a question 3) formulate a hypothesis 4) experiment 5) analyze results 6) draw conclusion Hypothesis If/then statement, an "educated guess" based on prior knowledge Scientific theory A hypothesis which has been verified and accepted SI ba...

Diaphragm Part of the compound microscope used to regulate the amount of light being transmitted through the specimen on the slide. 1 milligram 1 x 10 -3 grams Kepler His greatest contribution to science was that he described the orbits of the planets as ellipses. Newton Used the 3 laws of ...

Scientific method 1) make observations 2) form a question 3) formulate a hypothesis 4) experiment 5) analyze results 6) draw conclusion Hypothesis If/then statement, an "educated guess" based on prior knowledge Scientific theory A hypothesis which has been verified and accepted SI ba...

Atmospheric deposition What is the pollution of water bodies caused by air pollution Each time air is polluted with sulphur dioxide and nitrogen oxide, ____________ they mix water particles in the air and form a toxic substance Acid rain what is rainfall made acidic by atmospheric pollution ca...

Most appropriate way to store the most ph probes appropriate acidic buffer solution Scientist best known for pioneering the field of atomic theory John Dalton Metal atom bonds with nonmetal atom becomes what? compound Isotopes are elements with a different? number of electrons If Element...

Which of the following guidelines should be used when collecting data during an experiment? Vary only one factor at a time when studying how a system responds. Which of the following is equivalent to 1 × 10*-3 g? 1 milligram Which of the following characteristics is most important in demonstr...

Identifying problems based on observations Causal question—what am I seeing, what hypothesis might I test to learn more information about what I am seeing? Forming and testing hypotheses Hypotheses make a prediction about what will happen upon experimentation, but will not make inferences as to...