You change this factor on purpose in an experiment.
What is the independent variable
100
All matter is made up of these.
What are atoms?
100
This scale ranges from 0 to 14 and determines if a substance is an acid, base, or neutral.
What is the pH scale.
100
The basic unit of length.
What is a meter?
100
A definite shape and a definite volume?
What is a solid?
200
This variable is shown on the vertical "Y" axis on a graph.
What is the dependent variable
200
These are springing and able to be compressed into small places because of their indefinite shape and indefinite volume characteristic.
What are gases?
200
This material is corrosive, tastes sour, and releases hydrogen ions in water. It has a pH that ranges from 6.9 - 0.
What is an acid?
200
A derived unit that contains one unit of mass in a given volume describes this characteristic of matter.
What is density?
200
A gas-like mixture of electrically charged particles that have an indefinite shape and an indefinite volume.
What is plasma?
300
These are important in ensuring that you have only one independent variable being tested at a time.
What are constants?
300
The idea that all matter is made up of tiny particles that are always in motion describes this theory.
What is the Kinetic Particle Theory of Matter?
300
The OH (hydroxide) ion is released when this material is placed in water. It has a pH that ranges from 7.1 to 14.
What is a base?
300
This means 1,000.
What is a kilo-?
300
This is the most common phase of matter in the universe as it is found in all stars.
What is plasma?
400
Your recorded observations are considered to be this.
What is data.
400
This compound can be found naturally on Earth in all 3 phases of matter.
What is water?
400
Bubbles form and gases are released when a strong acid and base mix together. The resulting chemical reaction produces a salt and water which are neutral. This process of an acid and base reacting is called:
What is neutralization.
400
The process of changing one metric unit to another.
What is metric conversion?
400
If thermal energy is increased then this will increase.
What is temperature?
500
Data that is collected using only your 5 senses are called this.
What is qualitative data.
500
Two or more substances that are physically combined but maintain their own unique characteristics.
What is a mixture?
500
Water has a pH of
What is 7 (neutral)
500
2,500m = __________ km
What is 2.5km
500
Phase change can occur when you change one of the following three things: Energy, temperature, and this _______.