-
observing
Using one or more of your 5 senses to gather information about the world
-
5 senses
see, hear, taste, smell, feel
-
Examples of observations
dog bark, smelling smoke, counting 12 green seeds
-
data
information collected through observations; evidence
-
infer
interpret an observation
-
examples of inferences
dog barks, you infer someone is at the door; baby cries- hungry, wet, hurt
-
classify
put things together in groups based on characteristic that they share to make it easier to study
-
how do we classify shapes
size, shape, color, how it's used
-
model
smaller version of an object. makes it easier for scientists to study.
-
examples of models
drawings, physical models
-
why do scientists communicate with eachother?
- share results
- share information
- share opinions
-
what is science inquiry?
it is thinking like a scientist: being inquisitive, asking why, and searching for answers
-
What is the standard system of measurement used by scientists around the world?
International System of Units or SI
-
why are si units easy to use
they are based on units of 10
-
What do scientists use to measure length?
meter (m)
-
What two instruments are used by scientists to measure length?
metric rulers and meter sticks
-
What are some common SI prefixes?
- kilo- k
- hecto-h
- deka-da
- deci- d
- centi- c
- milli- m
-
What is the volume of a liquid?
the amount fo space the liquid takes up
-
What is the unit of measure scientists use to measure liquid volume?
Liter (L)
-
What instrument is used to measure liquid volume?
graduated cylinder
-
mass
the amount of matter in an object (or weight)
a balance is used to measure mass
-
gram
unit of measure used to measure mass
-
Larger masses are measured in. . .
Kilograms (kg)
-
Celcius
used to measure the temperature of something
-
water freezes at
0 Celcius
-
water boils at. . .
100 Celcius
-
unit used to measure time. . .
seconds
-
how do scientists share the data they gather?
- data table
- pictures
- diagrams
- models
- graphs
-
Steps to a scientific investigation:
- 1. pose a question
- 2. create a hypothesis
- 3. materials
- 4. procedure
- 5. observations
- 6. results
- 7. conclusion
-
the factor that you change in an experiment is called...
independent or manipulated variable
-
the factor that chages the result of the independent variable
responding or dependent variable
-
controlled experiment
an experiment in which all factors except for one are kept constant
-
operational definition
a statement that describes how a particular variable is to be measured or how a term is to be defined.
-
data
the observations and measurements you make in an experiment
-
conclusion
a statement that sums up what you have learned from an experiment.
-
Where do scientists record their measurements and data
data table
-
bar graph
used to display data in a number of separate, or distinct, categories
-
line graph
used to show how one variable (responding variable) changes in response to another variable (control)
-
a graph or chart that shows a category compared to 100%
-
A question or purpose to guide your activity
problem, question, or objective
-
The background information to help answer the problem question
research
-
an educated guess written as an if. . . then statement
hypothesis
-
list of items used ot conduct experiment
materials
-
sequential list of the steps to complete experiment
procedure
-
details about what is observed during the lab using your five senses. recorded in tables, graphs, diagrams
observations/data
-
a summary of data collected based on facts, not opinions. an interpretation of the data
analysis
-
An answer to the problem question based on data collected and applied to real life situations. Flaws in experiment are explained.
conclusion
|
|
