Scientific Method
Science Means _____________
To Know
If the pressure of a gas decreases at constant temperature, the volume will
Increase
Which state of matter has a definite volume, but not a definite shape?
Water has a density of 1 g/ml. What is the mass of the water if it fills a 10 ml container?
10g
What instrument is used to measure mass?
List three examples of a physical science
Physics, Chemistry, Astronomy, Geology
As the temperature of a gas increases (at constant volume), its pressure will___________
Increase
Which state of matter will hold its shape without a container?
Solid
What is the density of a sample of liquid that has a volume of 250mL and a mass of 100 g?
0.4 g/ml
What is the SI unit for mass?
Grams
What is the 3rd step of the scientific method?
Hypothesis
Charles Law States what?
The change of a substance from a solid directly to a gas is called
Sublimation
A certain gas expands to fill a 3 L container. Its mass is measured to be 0.6 kg. What is its density?
0.2 kg/L
What is the Kinetic Theory of matter?
All matter is made of particles that are constantly in motion
Why must scientist experiment?
To verify or prove their hypothesis
Gay-Lussac' Law states what?
As temperature increases, pressure increases
What happens to the particles of a substance when it condenses?
Slow down, Clump together
What is the volume of a marble that has a mass of 3 g and d density of 2.7 g/ml?
1.1ml
What instrument is used to measure volume?
Graduated Cylinder
List the scientific method in order
Observation
Ask a question
Hypothesis
Experiment
Data
Conclusion
Pressure is calculated by dividing force by the _____ over which the force is exerted.
area
Plasma
A graduated cylinder contains 17.5 ml of water. When a metal cube is placed onto the cylinder, its water level rises to 20.3 ml. What is the volume of the metal cube?
2.8ml
What goes up and down but doesn’t move?
A staircase