States of Matter and Phase Changes
Name the 3 states of matter.
What are solid, liquid, and gas?
The tool we use to measure length.
A ruler or meter-stick?
________ = Final Mass
What is initial mass?
Property that describes what an object feels like.
What is texture?
Observations based on using your senses.
What are qualitative observations?
Changing from a gas to a liquid.
What is condensation?
The tool we use to measure temperature.
What is a thermometer?
Mass is neither ______ or ______.
What is created or destroyed?
Flammability is an example of a ______ property.
What is a chemical property?
Observations based on numbers and data.
What are quantitative observations?
When a solid changes into a liquid, thermal energy is _______.
What is added or increased?
We use a ______to measure volume.
What is a graduated cylinder?
According to the Law of Conservation of Mass, before the physical change there were 20 particles. After the change there are _____ particles.
What is 20 particles?
The property of matter that describes how shiny the substance looks.
What is luster?
The variable that stays the same in the experiment.
What is a constant variable?
This state of matter has no definite shape and no definite volume.
What is a gas?
The metric unit we would use to measure the distance from New York to California.
What is kilometers or km?
15 g of sugar is mixed with 40 g of water. The mass of the sugar water after the ingredients are combined is ______ g.
What is 55 g of sugar water?
Cutting paper into smaller pieces of paper is an example of a _______ change.
What is a physical change?
The variable in the experiment that the scientist changes.
What is the independent variable?
Anything that takes up space (volume) and has mass.
What is matter?
The amount of matter in an object.
What is mass?
Magnesium (48g) + Oxygen (?g) --------> Magnesium Oxide (98g)
What is 50 g of Oxygen?
When a reaction occurs and a new substance is created.
What is a chemical change?
The variable that is influenced by the independent variable and is the result of the experiment.
What is the dependent variable?