Scientific Knowledge
(T/F) Any hunch you have is as good as a scientific theory.
(T/F) Scientific laws can be thought of as general descriptions of what we see happening around us.
F, T
An __________is an organized procedure to study something under controlled conditions. Experiments are often done in a laboratory.
experiment
A ______is a representation of an object or a process that allows scientists to study something in greater detail.
model
A(n) _____________ may work in a lab or in the field and conducts research to discover new things.
Scientist
______________ is the use of tools, machines, materials, and processes to meet human needs.
Technology
A scientific ______ is a well-supported explanation about the natural world.
theory
- Scientific theories have survived a great deal of testing.
- Scientists also use theories to make predictions about what they may not have seen yet.
_________is the process of obtaining information by using the senses.
Observation
(T/F) Scientific models have been used to show results of scientific experiments.
(T/F) Certain types of graphs are better than others for displaying specific types of data.
T, T
The impact of science on _______ includes improvements in medicine, new technology, and more diverse food sources.
society
_________is the application of science and mathematics to solve real-life problems.
Engineering
A scientific _______ is a representation of something in the natural world.
model
- Models allow scientists to study things that may be too large, too small, or in some way too difficult to study.
A ________is any factor that can change in an experiment, observation, or model.
variable
(T/F) Most graphs are confusing and unnecessary.
(T/F) If something can be shown in a table, then it should not be shown in a graph.
F, F
(T/F) Good scientists are creative, logical thinkers and keen observers.
(T/F) Only scientists are capable of scientific thinking.
T, F
A ________ is a test model of the product.
prototype
Which phrase defines a scientific theory?
a. an untested idea
b. an educated guess
c. an accepted description
d. a well-supported explanation
d. a well-supported explanation
________ are information gathered by observation or experimentation that can be used in calculating or reasoning.
Data
Which is a limitation of a model representing the solar system?
a. It cannot show the relative sizes of each planet.
b. It cannot show how the planets orbit the sun.
c. It does not show the gravitational force exerted by each planet.
d. It does not show the order of the planets, from closest to the sun to farthest from the sun.
c. It does not show the gravitational force exerted by each planet.
Florida A&M University has an Environmental Sciences Institute. In which area would research at this institute most likely have an impact?
a. weather prediction
b. new technology products
c. development of new medicines
d. conservation of natural resources
d. conservation of natural resources
Juan walks into a room and flips on the light switch but nothing happens. What can Juan claim based on this evidence?
a. The light is burned out.
b. The light switch is not working.
c. The electric power to the building is turned off.
d. More information is needed to make a conclusion
d. More information is needed to make a conclusion
In which statement does the word theory mean scientific theory?
a. In theory, the experiment will work as planned.
b. She has a theory about why the storm arrived later than predicted.
c. The atomic theory explains that all objects are made up of atoms.
d. The doctor’s prescription for curing a cold is based on his best theory or guess.
c. The atomic theory explains that all objects are made up of atoms.
Scientists often form a hypothesis, which is an educated guess about why something happens that can be tested. A hypothesis is an attempt to explain an observation. Which of the following is an example of a person who is not a scientist but is still forming a hypothesis?
a. a baker who thinks that a cake did not turn out well because the oven temperature was too hot
b. a reporter searching for facts
c. a detective who identifies a suspect based in collected evidence
d. a science teacher correcting a test
a. a baker who thinks that a cake did not turn out well because the oven temperature was too hot
A solar system model is a good scientific model. Suppose that scientists observe a new orbital path for one of the planets. What will most likely happen to this model?
a. The model will be adapted to reflect this new observation.
b. Scientists will no longer use a model to study the solar system.
c. Scientists will never again look at the work of the scientist who made this model.
d. Scientists will ignore their observations and rely on the information shown in the model.
a. The model will be adapted to reflect this new observation.
Some scientists work in life science. Which of the following is an example of a life scientist?
a. a geologist
b. an astronomer
c. a cell biologist
d. a meteorologist
c. a cell biologist
Which of the following is not a part of the engineering design process?
a. Identifying a need
b. Self-publishing work
c. Brainstorming and selecting solutions
d. Building a Prototype
e. Testing, Evaluating, and Redesigning a Prototype
f. Communicating Results
self-publishing work -> conducting research