What unit would you use to measure the amount of water in a lake?
What is Liters (L)
100
The ratio of the mass of a substance to the volume of the substance
Density
100
A chemical property that involves the ability of two or more substances to combine and form one or more new substances
What is REACTIVITY
100
What was the purpose of our lab
What is To find out how baking soda, baking powder, cornstarch and sugar react with water and vinegar.
100
What unit would you use to measure the volume of soda in a can?
What is milliliters (mL)
200
the curve at a liquid's surface by which one measures the volume of the liquid
What is MENISCUS
200
Does the most or least dense layer of liquid settle on the bottom of a graduated cylinder?
What is Most Dense
200
An iron nail rusts because it is reactive with ...
What is oxygen in the air
200
What are 8 materials you used in the lab?
What is baking powder, baking soda, cornstarch, sugar, vinegar, water, stirring rod, spatula, eyedropper, egg carton
200
What physical property involves aluminum can being flattened into sheets of foil
What is MALLEABILITY
300
The tendency of an object to resist a change in motion is known as
What is INERTIA
300
What kind of physical property is displayed when sugar is dissolved into water like the experiment we did in class
What is SOLUBILITY
300
What happens to baking a cake that involves chemical changes
What is the cake has completely different than its original ingredients. It is impossible to reverse the results of those changes.
300
When cornstarch mixed with vinegar, a physical change occured. What observations could have been seen to see this PC?
What is reactivity or flammability.
300
Why can you express the volume of the 12-sided object measured by this method in cubic units?
What is Because 1 mL of water = 1 mL 3
400
How could the volume of a 12-sided object be found using water and a graduated cylinder?
What is place the object in a graduated cylinder with water and measure the volume of water displaced.
400
What physical property is displayed when plastic foam protects you from hot liquid
What is thermal conductivity
400
An example of a chemical change being able to be reversed
What is water formed in a space shuttle's rockets can be later split back into hydrogen and oxygen using an electric current.
400
What 2 physical properties do all four substances share?
What is all are white solids and powdery, granualar.
400
How does mass affect the inertia of an object?
What is the more mass an object has, the greater its inertia.
500
What is the only way to change the mass of an object
What is change the amount of matter it contains
500
What is one one reason why density is a useful property for identifying substances
What 1) is a substance's density is always the same at a given temperature and pressure or 2) Most substances have different densities
500
Explain how to tell the difference between a physical and a chemical property.
What is A PP can be observed or determined without changing the identify of the substance, but a CP can be observed only while the chemical change is occurring.
500
Name 3 errors that could have happened in the experiment to skew the results?
1-put too much substance in the egg container 2-put too much liquid in the egg container 3-confused the substances
500
The breakdown of water to form two gases is the result of this process