Phase Change the Channel!
I start as a liquid but when thermal energy is added, I turn into a Gas. What phase change am I?
What is Evaporation?
I have a definite volume, but no definite shape, I take on the shape of my container
What is a liquid
What is D
What is a Quantitative and Qualitative Observation?
Quantitative-uses numbers
Qualitative-uses the 5 senses
Why must we have multiple constants in an experiment?
Because it allows scientists to have accurate data
During the phase change condensation, is thermal energy being added or removed? Explain WHY
Phase change occurs when this is added or removed from a substance.
What is Thermal Energy
After you took a shower in the morning you could not see very well because the mirror was all fogged up. What happened to the water vapor and what type of change occured
What is condensation, physical change
What are the three key words of a hypothesis?
It was really hot outside and Joseph’s bowl of cookie dough ice cream melted. Somehow, the cookie dough did not melt. Which of the following is true about the matter found in the glass?
The cookie dough is the liquid and the ice cream is the solid.
The cookie dough and the ice cream are both solids.
The ice cream is now a liquid and the cookie dough is a solid.
Everything has melted to become a liquid.
C
I have a definite volume, and a definite shape, I also enjoy vibrating in place
What is Solid
Centimeters
Name the difference between an independent variable and a dependent variable
Independent variable- variable that changes in an experiment
Dependent Variable- variable that is measured in the experiment
You pour a volume of 25 ml into a large beaker for an experiment. During this time, you realize you can also use a thinner graduated cylinder. You pour all of the water inside the graduated cylinder. What is the volume?
25 ML, the volume of a liquid does not change
Freezing _____________________ thermal energy
___________________to ______________________
Removes thermal energy, Liquid to Solid
I have a indefinite volume, but no definite shape, I roam freely around the space I am in
What is a Gas
Ms.Halligan wants to measure how much water she will need to fill the entire classroom of Villanova from floor to ceiling. What unit can she use to accomplish this task?
Liters-not a large amount of space
You went to the nurse and got a cold pack for an injury in gym. The cold pack was never in a freezer but it feels cold on your bruised knee. You need to figure out the volume of the icepack and its specific temperature. What tools will you need to use to identify the temperature and volume of liquid?
Thermometer and Graduated Cylinder (Beaker)
During the phase change melting, is thermal energy being added or removed? Explain how you know
Added because it is changing from a solid to a liquid so the speed is increasing and the particles are moving farther apart.
Compare the motion of solid particles and liquid particles
Solid particles vibrate in place and move slowly. Liquid particles slide past each other and have more room to move around.
Water vapor is a example of which state of matter?
What is a Gas
Ms. Santucci decides one day that she wants to do a science experiment. She wants to go BIG! So she decides she wants to figure out: which cohort weighs the most? She breaks out her triple beam balance and her clipboard to record data but realizes, she doesn't know what units to use. What units should she use?
Kilograms because this is a large amount.
You identify the independent variable as the mass of the ice and the dependent variable as how quickly the ice melts. What is a scientific question you could make?
Does the mass of ice affect how quickly the ice melts?
What grade will we all receive on the Science IA?
100%