Vocabulary Terms
two types of observations made by scientists
qualitative and quantitative
What is the 2nd step of the scientific method?
research
The number one cause of accidents in a lab; behavior that is not permitted
What is horse play ?
Another name for the metric system of measurements, uses these for length, mass, liquids, and time.
What is the International System of Units ( SI )
A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly.
What is the DEPENDENT variable ?
DISTANCE THE PLANE FLIES
The three types of variables in an experiment
Independent, Dependent, Controlled
The part of the scientific method that often includes a procedure and a data table.
Experiment
two rules regarding clothing during a lab
no dangling or loose clothes
no open toed shoes
These are the names of the metric prefixes
What are Kilo-, Hecto-, Deka-, Units , deci-, centi-, and milli-
Two groups of students were tested to compare their accuracy working math problems. Each group was given the same problems. One group used calculators and the other group computed without calculators.
What is the INDEPENDENT VARIABLE?
USING A CALCULATOR
The branch of science that studies insects
ENTOMOLOGY
If ________________ then ________________ because ___________________________
Which blank would include your independent variable?
The first one
Do not _____________ any equipment, supplies, animals, or other materials in the science room without permission from the teacher.
touch
The metric unit you would use to measure the length of the room
Meters
A study was done to find if different tire treads affect the braking distance of a car.
Name 2 variables that should be controlled.
same type of car
same road
same time of day
same temperature
Define EVIDENCE
serves to either support or counter a scientific theory or hypothesis
What a scientist should do if he/she discovers there are errors or flaws.
Modify or re-do the experiment
The proper way for a scientist to smell a chemical
waft it
A meter stick contains this many centimeters.
What is 100 centimeters ?
A student was investigating whether the height of bean plants would depend on the amount of water they receive.
Write a hypothesis for his experiment in proper format.
If the plants are given more water, then they will grow taller because plants need water to grow.
Define INFERENCE
a conclusion reached on the basis of evidence and reasoning
Define EXPERIMENTAL GROUP
the group in an experiment that receives the variable being tested
If you are unsure of anything, you should do this.
When do you notify your teacher ?
The metric unit for measuring a quantity of liquid
Liters or milliliters
Four groups of rats are first massed and then fed identical diets except for the amount of vitamin A they receive.
Describe the control group for this experiment.
Rats that don't get any vitamin A.