To identify a substance by its density, you must determine its ___________ & ______________.
What is mass and volume?
100
The process by which a liquid becomes a solid.
What is freezing?
100
If we graph melting point as a function of time, which axis does time go on?
What is the x-axis?
100
This is the complete formula for measuring density.
What is mass/volume?
100
A property of a solid, liquid, or gas that is unique to that substance is called this.
What is a characteristic property?
200
You have a sample with a mass of 20 grams and a volume of 4 mL. What is the density?
What is 5 g/mL?
200
This is what we call the temperature at which a substance goes from a solid to a liquid.
What is melting point?
200
True or false, there is no need to start the scale at the smallest value and end it at the largest value.
What is true?
200
_____ is the base unit for measuring mass in the metric system.
What is grams?
200
It is valid or invalid to say that if two substances share the same melting/freezing and boiling points but have different densities, they are the same substance.
What is invalid?
300
The density of water is always _______________ g/cm^3.
What is 1?
300
I have determined that two substances have the same freezing point. Are they the same substance?
What is "Mostly likely, but you would want to test at least 1 more characteristic property"?
300
When graphing a range of temperatures, this is the kind of line you should use to most accurately represent the data.
What is a best fit curve?
300
These two states of matter have a density between 0.5 g/cm^3 and 20 g/cm^3.
What is solid and liquid?
300
True or false: mass is a characteristic property.
What is false?
400
What will happen to an object with a density of 0.33 g/cm^3 when you drop it in water?
What is it will float?
400
The substance with the highest melting point:
Water, cooking oil, stainless steel teaspoon, ice
What is stainless steel teaspoon?
400
When we take reading for boiling point after a period of 12 minutes, this is how many minutes the time axis should cover.
What is at least 12?
400
This scientific tool is used with water to measure the volume of an irregularly shaped object.
What is a graduated cylinder?
400
What is a characteristic property?
Something that defines a substance, and is independent of sample size.
500
In a lava lamp, heated wax expands, making its __________ bigger. This makes the density lighter so the wax floats.
What is volume?
500
Dew forming on cool grass and water forming on the outside of a glass is an example of this.
What is condensation?
500
A substance was cooled from 83 degrees C to 22 degrees C. This pair best represents the data.
A. 0, 100 B. 20, 90 C. 30, 80 D. 22, 83
What is B?
500
A graduated cylinder has 50 mL of water. You drop a steel cube into the cylinder and the water level rises to 68 mL. This is the volume of the cube.
What is 18 mL?
500
Object A has a mass of 450g and a density of 4.5 g/cm^3. Object B has a mass of 650 g and a density of 6.5 g/cm^3. This object will displace the most liquid.
What is they both will displace the same amount of liquid?