Introduction to Matter Flashcards
What is the Conservation of Mass?
Mass cannot be created nor destroyed
What is an example of the Conservation of Mass
Campfire (Before its wood, after its turned into ash, water vapor, carbon dioxide fumes)
What are Physical Properties?
Characteristics that can be observed, without changing into a new substance.
What are some examples of Physical Properties?
Color, Conductivity, boiling point, texture
What are Chemical Properties?
Ability to change into different substances
Name an example of a chemical property
Flammability, oxidation (rust)
What is a pure substance?
A single kind of matter that always has a a specific makeup or composition.
What is an example of a pure substance?
Oxygen, sugar, hydrogen
What is a mixture?
Two or more substances that are together in the same place but are not chemically bonded.
What are some examples of mixtures?
chocolate milk, air, coffee
Does gravity effect mass?
NO
Does gravity effect weight?
YES
True or False: Weight depend on location because gravitation pull affects weight
TRUE
Do you weigh more on earth or the moon?
Earth
Is mass the same on earth or the moon?
BOTH - Mass is constant and doesn’t change
How do you calculate DENSITY?
Density = mass/volume
The density of water is 1gram/ml. Anything with a greater density will……?
SINK
The density of water is 1gram/ml. Anything with a lesser density will…..?
FLOAT
What is a physical change?
A change in the form or appearance of matter.
What is an example of a physical change?
Crushing a can, chopping wood
What is a chemical change?
A change in matter that result in matter that produces one or more new substances.
What is an example of a chemical change?
Rust….remember OXIDATION is a chemical property and oxidation causes rust.
What is a homogenous mixture?
a mixture where it is difficult or impossible to see the different parts. For example apple juice, soda
What is a heterogenous mixture?
Different parts are not chemically bonded and easy to separate? For example a stew. You can easily pick ou the meat and vegetables.
