Science 8 - Scientific Thinking - Peterson
Terms in this set (23)
Series of steps followed to solve problems
A step in Scientific Method: What question is being asked?
A step in the Scientific Method. A best guess or possible explanation or answer to a question
A step in the Scientific Method. Info needed for an experiment that can include a list of materials, definitions, and facts.
A step in the Scientific Method. The directions on how to do the experiment
Data and Observation
A step in the Scientific Method. A record of results of the experiment, often in chart form.
A step in the Scientific Method. A written summary of the experiment
The standard part of the experiment used for comparing the changes.
Something that can cause an observable change in the outcome of an experiment when compared to a control
Stored energy possessed by an object due to its position
Energy possessed by an object due to its motion or movement
Mistakes that can affect the outcome of a controlled experiment when they should be the same.
A device to measure the weight of an object and is expressed in Newtons.
Triple Beam Balance
An instrument. This instrument measures the mass on an object in grams
A distance measured in a straight line
The measure of the gravitational force on an object
The measure of the amount of matter that makes up an object.
Example: Pendulum lab
*string length differences - double check measurements
*Air movement: find a non-windy spot to do experiment
Example: Bubble Gum Lab
*talking instead of chewing bubble gum; double check
*read information incorrectly; double check reading
*Timing could have been off; use more precise timer
Potential energy in the pendulum lab
This type of energy is stored energy so we observed it building as the penny moved away from it's lowest point. The greatest amount of this type of energy happened when the penny was in its highest position.
Potential energy in the spool racer activity
This type of energy is stored energy so we observed it as we wound the rubber band tighter and tighter. The greatest amount of this kind of energy occurred when we had finished winding the racer but before we released it.
Kinetic energy in the pendulum lab
This type of energy is observable when an object moves. We saw this when the penny cycled back and forth. The greatest amount of this kind of energy happened when the penny was at its lowest point.
Kinetic energy in the spool racer activity
This type of energy is when an object moves. We saw this anytime the spool racer moved, even a little.
The difference between mass and weight
Mass is the measure of the amount of matter that makes up an object and is measured in grams. Weight is the measure of the gravitational force on an object and is measured in Newtons. Mass stays the same no matter what the gravitational force but weight will change. Example: a rock on Earth vs on the Moon. The rock has the same mass in either place but it will weigh 1/6th the amount on the moon as it will on Earth.