A testable idea or explanation that leads to scientific investigation.
What is a hypothesis?
100
Out of mass, volume, temperature, & melting point this is the best for determining an unknown.
What is melting point?
100
Melting temperature, density, hardness, and conductivity are examples of these.
What are physical properties?
100
The density of a substance is this type of property (p or c).
What is physical?
100
Each state of matter depends on this.
What is the motion of its particles?
200
The variable that is tested or manipulated in an experiment.
What is the independent variable?
200
This type of variable is located on the x-axis.
What is independent variable?
200
Out of melting temperature, hardness, and conductivity, this is the most useful for identify an unknown substance.
What is melting temperature?
200
These tools are used to find the density (g/cm3) of regular solids.
What are balance & ruler?
200
In this state of matter, the particles are free to move independently, colliding frequently.
What is a gas?
300
The factor that changes in response to what is being measured.
What is the dependent variable?
300
This type of variable is located on the y-axis.
What is dependent variable?
300
Boiling, freezing, melting, evaporation, and condensation are examples of this type of change.
What is physical change?
300
These tools are used to find the density (g/ml)of liquids .
What are balance & graduated cylinder?
300
These two changes of state can occur when a liquid changes into a gas.
What is evaporation or boiling?
400
The results of an experiment are only valid if they are this.
What is reproducible or supported by repeated tests?
400
In an "if__________, then ____________" statement the independent variable is this.
What is the "if"?
400
Burning match, rotting food, and baking cookies are examples of this type of change.
What is chemical change?
400
This method is used to find the density (g/ml = g/cm3) of irregular solids.
What is water displacement?
400
When the particles of a gas are slowed this physical process occurs.
What is condensation?
500
Joey did an experiment to see if new shoes affected how high he jumped. He measured how high he jumped in a pair of old shoes and then new shoes. The dependent variable is this.
What is how high he jumped?
500
The mnemonic "DRY MIX" will help you to remember this.
What is "dependent, responding, y-axis" and "manipulated, independent, x-axis"?
500
Unlike a physical change, a chemical change result in this.
What is a new substance(s) with new/different properties?
500
If an object is less dense than the substance that it is put in, then it will do this.
What is float?
500
This is why particles of a liquid move freely while those of ice are locked in place.