Properties of Matter
Which property of matter describes how much matter an object contains?
Mass
What is a phase change?
When matter changes from one state to another (example: a solid turning into a liquid).
What is the boiling point of water in degrees Celsius?
100 degrees celsius
What is a hypothesis?
A prediction about what could happen during the experiment.
What happens when a substance gets bigger?
Expansion
If a car takes up more space in a garage than a basketball, that means the car has a greater _____.
Volume
In this phase change, particles form a solid and energy is released.
What is freezing?
Is a substance hot or cold when particles are moving quickly in the thermometer?
Hot
When we added food dye to hot water, what happened to the particles?
The particles spread out faster than they did in the cold water. This is because more energy is added to the particles which helps them to spread out faster.
What happens to mass during thermal expansion and contraction?
Mass stays the same
_____ is how tightly packed matter is in an object.
Density
When liquid turns into a gas and particles are moving rapidly this is called...
Evaporation
Which country uses Fahrenheit as their measurement of temperature?
United States
During our balloon experiment, when we cooled the balloon down what happened to it.
The cool air helped the balloon to contract.
Does a volume increase show thermal expansion or contraction?
Thermal expansion
An orange is easier to squeeze than an apple, that means the orange has a greater _______.
Compressibility
Dry ice is an example of this phase change happening in the real world.
What is sublimation?
What type of liquid is usually used in a thermometer?
Alcohol
During our thermometer experiment, we used an agent that helped to move the liquid up the straw when heated. What is that agent called?
Rubbing alchohol
Does density increase or decrease during thermal contraction?
Density increases
When we add heat to a substance, what happens to the attractive forces?
The attractive forces weaken because we are adding energy that helps to move the particles further apart.
What is condensation?
Particles change from a gas to a liquid. Warm air meets a cold surface and water droplets form.
What type of liquid used to be used in thermometers?
Mercury
During our snow and water melting experiment (using the scale), we noticed that one thing did not change after the snow melted. What was that one thing?
The mass of the water and the snow stayed the same.
What happens to particles during thermal contraction?
Particles move slower and come closer together