Scientific Method
What is an independent variable?
The variable that is changed in an experiment
What is a bar graph used for?
used to compare different categories of data
What is diffusion?
Where particles move from an area of high concentration to an area of low concentration
What is temperature?
Water displacement method
What is a hypothesis?
Educated guess or prediction
How do you interpret a line graph?
You can connect the dots; used to look at data over a long period of time
What are two ways particles can move?
Random motion and diffusion
What is kinetic energy?
Give an example of diffusion
Answers will vary
What is a control group?
The group that is not changed in order to use as a standard of comparison in an experiment.
What type of graph shows parts of a whole?
pie graph
What is random motion?
Where particles move at unpredictable (or random) ways
What is thermal contraction?
This occurs when the temperature decreases, thus kinetic energy decreases. Because of this, the particles occupy less space
Give an example of random motion
Answers will vary
What is a dependent variable?
The variable in an experiment that is measured
Why would you use a pie graph?
to show parts of a whole
What are the three states of matter?
Solid, liquid, and gas
Which state of matter would have the most kinetic energy?
What is mass?
the amount of matter that makes up an object
What is an experimental group
The group that is experimented on
How can graphs help with scientific inquiry?
They help us to visualize data
This happens due to an increase in temperature, which causes the particles to need to take up more space. This means that the area the particles have taken, has to expand to make more room
How is temperature related to kinetic energy?
An increase in temperature leads to an increase in kinetic energy
What is weight?
the force of gravity pulling on an object