SCIENCES EXAM QUESTIONS WITH
ANSWERS
1. Physics - ANSWER The study of forces, energy, motion
2. Chemistry - ANSWER The study of atoms and molecules, their structures,
and their interactions to form substances
3. Earth science - ANSWER The study of the Earth's structure and
composition, and processes that change Earth
4. essential attributes of science - ANSWER Studies the natural world
Uses testable ideas
Relies on data from observations/experiments
Presented for evaluation by other scientists
Leads to further questions/research
5. variables - ANSWER The changing quantities in an experiment
6. independent variable - ANSWER What you change in an experiment on
purpose
,7. dependent variable - ANSWER The variable that changes because of an
independent variable
8. control variable - ANSWER The variable(s) you don't want to study, need to
be either eliminated or kept constant
9. observational study - ANSWER When systems are observed as they appear
in nature, researchers do not attempt to change them
10.principle of falsification - ANSWER Principle that only falsifiable
statements can be subject to scientific inquiry
11.hypothesis - ANSWER A testable statement about how something in nature
works
12.law - ANSWER A concise statement that is supported by scientific evidence
and repeated experiments, describes a widespread pattern in nature (what)
13.theory - ANSWER A statement that explains a wide range of observations,
supported by a large body of scientific evidence (how/why)
14.meter - ANSWER Base unit of length
15.kilogram - ANSWER Base unit of mass
16.second - ANSWER Base unit of time
, 17.kelvin - ANSWER Base unit of temperature
18.Derived units - ANSWER What is produced when the base units/quantities
are combined
19.Speed - ANSWER The name for the distance traveled divided by an interval
of time
20.Volume - ANSWER Term for the amount of space an object occupies
21.Liquid displacement - ANSWER Method of determining the volume of an
object by measuring the amount of liquid it displaces
22.physical model - ANSWER A model of a physical phenomenon, such as a
planetary system
23.conceptual model - ANSWER A model used to visualize things that cannot
be seen, such as atoms
24.mathematical model - ANSWER A model that treats physical
objects/phenomena using mathematical methods
25.computer model - ANSWER A detailed, complex model calculated by a
computer