Let's Experiment!
A standard to which the results can be compared.
Control
The metric base unit of length/distance.
Meter
True or False:
Each element has a unique number of protons.
True
Two or more types of atoms that are chemically combined.
Compound
The four physical states of matter.
Solid, Liquid, Gas, Plasma
The variable that is measured at the end of the experiment.
Dependent variable
All three instruments used to measure liquid volume.
Beaker, Flask, Graduated Cylinder
The two particles found in the nucleus.
Protons and Neutrons
The two types of mixtures.
Heterogeneous and Homogeneous
Liquid
A variable that the scientist change in the experiment.
Independent variable
The freezing and boiling points in Celsius.
0 and 100 degrees
The atomic charge of neutrons.
Neutral (no charge)
True or false:
A compound can be separated by physical means.
False
The most common state of matter in the universe.
Plasma
The number of variables an experiment should be designed to test.
1
The freezing and boiling points in Kelvin.
273K and 373K
The mass of electrons in amu.
0 amu
Any example of a compound.
Water, Salt, etc...
Changes in states are influenced by increases and decreases in these two factors.
Temperature and pressure
An example of a control in the experiment below:
Matt wants to test how the amount of caffeine affects how fast he can run 100 meters.
No caffeine
Absolute zero in Fahrenheit.
The number of neutrons if element has 12 protons and a mass number of 25.
13
A solution is another word for this type of mixture.
Homogeneous
This is defined as the objects mass divided by its volume.
Density